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Motive (algebraic geometry)

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527: 7290:, implies the equivalence of pure motives with respect to homological and numerical equivalence. (In particular the former category of motives would not depend on the choice of the Weil cohomology theory). Jannsen (1992) proved the following unconditional result: the category of (pure) motives over a field is abelian and semisimple if and only if the chosen equivalence relation is numerical equivalence. 8295: 2711: 3874: 3051: 310: 2413: 6307: 4611:
will guarantee that every pair of cycles has an equivalent pair in general position that we can intersect. The Chow groups are defined using rational equivalence, but other equivalences are possible, and each defines a different sort of motive. Examples of equivalences, from strongest to weakest, are
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There are different definitions due to Hanamura, Levine and Voevodsky. They are known to be equivalent in most cases and we will give Voevodsky's definition below. The category contains Chow motives as a full subcategory and gives the "right" motivic cohomology. However, Voevodsky also shows that
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From another viewpoint, motives continue the sequence of generalizations from rational functions on varieties to divisors on varieties to Chow groups of varieties. The generalization happens in more than one direction, since motives can be considered with respect to more types of equivalence than
2129: 1875: 3483: 2570: 4082: 3628: 2867: 522:{\displaystyle \left(M_{B},M_{\mathrm {DR} },M_{\mathbb {A} ^{f}},M_{\operatorname {cris} ,p},\operatorname {comp} _{\mathrm {DR} ,B},\operatorname {comp} _{\mathbb {A} ^{f},B},\operatorname {comp} _{\operatorname {cris} p,\mathrm {DR} },W,F_{\infty },F,\phi ,\phi _{p}\right)} 4555: 5219:
whose objects are smooth varieties and morphisms are given by smooth correspondences. The only non-trivial part of this "definition" is the fact that we need to describe compositions. These are given by a push-pull formula from the theory of Chow rings.
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preserve this structure. Then one may ask when two given objects are isomorphic, and ask for a "particularly nice" representative in each isomorphism class. The classification of algebraic varieties, i.e. application of this idea in the case of
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The standard conjectures are commonly considered to be very hard and are open in the general case. Grothendieck, with Bombieri, showed the depth of the motivic approach by producing a conditional (very short and elegant) proof of the
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theory will have such properties. There are different Weil cohomology theories, they apply in different situations and have values in different categories, and reflect different structural aspects of the variety in question:
7719:(the spaces that are morally the algebraic cycles are picked out by invariance under a group, if one sets up the correct definitions). The motivic Galois group has the surrounding representation theory. (What it is not, is a 4400: 2030: 3196: 874: 694: 1728: 3342: 2706:{\displaystyle \operatorname {Ob} \left(\operatorname {Chow} ^{\operatorname {eff} }(k)\right):=\{(X,\alpha )\mid (\alpha :X\vdash X)\in \operatorname {Corr} (k){\mbox{ such that }}\alpha \circ \alpha =\alpha \}.} 6413:, depending on the coefficients used in the construction of the category of Motives. These are fundamental building blocks in the category of motives because they form the "other part" besides Abelian varieties. 3869:{\displaystyle f_{1}\otimes f_{2}:(X_{1},\alpha _{1})\otimes (X_{2},\alpha _{2})\vdash (Y_{1},\beta _{1})\otimes (Y_{2},\beta _{2}),\qquad f_{1}\otimes f_{2}:=\pi _{1}^{*}\gamma _{1}\cdot \pi _{2}^{*}\gamma _{2}} 3963: 3046:{\displaystyle h:{\begin{cases}\operatorname {SmProj} (k)&\longrightarrow \operatorname {Chow^{eff}} (k)\\X&\longmapsto :=(X,\Delta _{X})\\f&\longmapsto :=\Gamma _{f}\subset X\times Y\end{cases}}} 6760: 5648: 1379: 5889: 7410: 1720: 1666: 7172: 6825: 5839: 6528:
is an attempt to find a universal way to linearize algebraic varieties, i.e. motives are supposed to provide a cohomology theory that embodies all these particular cohomologies. For example, the
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coincides with the one predicted by algebraic K-theory, and contains the category of Chow motives in a suitable sense (and other properties). The existence of such a category was conjectured by
6458: 4797: 4738: 4411: 1990: 5265: 4968: 2167: 996: 7678:-vector spaces. It can be shown that the former category is a Tannakian category. Assuming the equivalence of homological and numerical equivalence, i.e. the above standard conjecture 5360: 1916: 7193:
were first formulated in terms of the interplay of algebraic cycles and Weil cohomology theories. The category of pure motives provides a categorical framework for these conjectures.
4593: 2461: 2199: 1948: 1285: 1160: 1112: 4154: 933: 6079: 2717: 2408:{\displaystyle \alpha +\beta :=(\alpha ,\beta )\in A^{*}(X\times X)\oplus A^{*}(Y\times Y)\hookrightarrow A^{*}\left(\left(X\coprod Y\right)\times \left(X\coprod Y\right)\right).} 5217: 5103: 5006: 4165: 8275: 5938: 5045: 1615: 1410: 7137: 5677: 1058:
can be put on increasingly solid mathematical footing with a deep meaning. Of course, the above equations are already known to be true in many senses, such as in the sense of
7099: 6382: 6351: 6042: 7426: 8320: 7676: 7616: 7594: 7345: 6851: 6650: 6501:, is very difficult due to the highly non-linear structure of the objects. The relaxed question of studying varieties up to birational isomorphism has led to the field of 4869: 3211: 1018: 172: 6924: 5177: 5740: 1250: 1220: 963: 5297: 2022: 1579: 6302:{\displaystyle \operatorname {Hom} _{\mathcal {DM}}((A,n),(B,m))=\lim _{k\geq -n,-m}\operatorname {Hom} _{{\mathcal {DM}}_{gm}^{\operatorname {eff} }}(A(k+n),B(k+m))} 2469: 268: 230: 120: 1194: 6111: 4685: 894: 6411: 6004: 5971: 5446: 1430: 825: 294: 7323: 6478: 140: 5386: 4256: 791:{\displaystyle \operatorname {comp} _{\mathrm {DR} ,B},\operatorname {comp} _{\mathbb {A} ^{f},B},\operatorname {comp} _{\operatorname {cris} p,\mathrm {DR} }} 4743:
taking values on all varieties (not just smooth projective ones as it was the case with pure motives). This should be such that motivic cohomology defined by
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is an attempt to find a universal theory which embodies all these particular cohomologies and their structures and provides a framework for "equations" like
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The literature occasionally calls every type of pure motive a Chow motive, in which case a motive with respect to algebraic equivalence would be called a
2124:{\displaystyle F:{\begin{cases}\operatorname {SmProj} (k)\longrightarrow \operatorname {Corr} (k)\\X\longmapsto X\\f\longmapsto \Gamma _{f}\end{cases}}} 5457: 4329: 8299: 7287: 7190: 3092: 830: 1870:{\displaystyle \beta \circ \alpha :=\pi _{XZ*}\left(\pi _{XY}^{*}(\alpha )\cdot \pi _{YZ}^{*}(\beta )\right)\in \operatorname {Corr} ^{r+s}(X,Z),} 636: 3478:{\displaystyle \pi _{X}:(X\times Y)\times (X\times Y)\to X\times X,\quad {\text{and}}\quad \pi _{Y}:(X\times Y)\times (X\times Y)\to Y\times Y.} 8186: 8092: 8071: 8045: 8017: 7968: 7938: 7861: 4077:{\displaystyle L:=(\mathbb {P} ^{1},\lambda ),\qquad \lambda :=pt\times \mathbb {P} ^{1}\in A^{1}(\mathbb {P} ^{1}\times \mathbb {P} ^{1})} 6547:. So, the motive of the curve should contain the genus information. Of course, the genus is a rather coarse invariant, so the motive of 6424: 1167: 175: 4607:
In order to define an intersection product, cycles must be "movable" so we can intersect them in general position. Choosing a suitable
1020:-variety and the structures and compatibilities they admit, and gives an idea about what kind of information is contained in a motive. 1028:
The theory of motives was originally conjectured as an attempt to unify a rapidly multiplying array of cohomology theories, including
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Moreover, this behaves functorially and forms a triangulated functor. Finally, we can define the category of geometric mixed motives
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There are several important cohomology theories, which reflect different structural aspects of varieties. The (partly conjectural)
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where "+" corresponds to attaching cells, and in the sense of various cohomology theories, where "+" corresponds to the direct sum.
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this functor is shown to be an equivalence of categories. Notice that fields are 0-dimensional. Motives of this kind are called
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There are several elementary examples of motives which are readily accessible. One of them being the Tate motives, denoted
5756: 7596:-linearizing the above objects, another way of expressing the above is to say that Artin motives are equivalent to finite 5392:
this category with respect to the smallest thick subcategory (meaning it is closed under extensions) containing morphisms
4608: 1067: 8325: 7523:), which takes values in semi-simple representations. (The latter part is automatic in the case of the Hodge analogue). 6670: 4906: 4749: 4550:{\displaystyle f:(X,p,m)\to (Y,q,n),\quad f\in \operatorname {Corr} ^{n-m}(X,Y){\mbox{ such that }}f\circ p=f=q\circ f,} 5680: 8315: 8037: 4693: 4653: 7625:
is to extend the above equivalence to higher-dimensional varieties. In order to do this, the technical machinery of
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A commonly applied technique in mathematics is to study objects carrying a particular structure by introducing a
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which is an interesting invariant of the curve, is an integer, which can be read off the dimension of the first
5313: 1886: 7963:, Proceedings of Symposia in Pure Mathematics, vol. 55, Providence, R.I.: American Mathematical Society, 4566: 2434: 2172: 1921: 1258: 1133: 1085: 2828:{\displaystyle \operatorname {Mor} ((X,\alpha ),(Y,\beta )):=\{f:X\vdash Y|f\circ \alpha =f=\beta \circ f\}.} 7768: 7758: 6683: 6596: 3942: 3083: 31: 7708: 6610:
has the same structure in any reasonable cohomology theory with good formal properties; in particular, any
4226:{\displaystyle \mathbf {1} \cong \left(\mathbb {P} ^{1},\mathbb {P} ^{1}\times \operatorname {pt} \right).} 4110: 899: 6676: 6489: 6047: 1079: 1044: 936: 187: 74: 54: 7728: 7178: 6653: 5590: 5186: 5076: 4973: 4886: 8281: 8241: 5894: 5015: 1588: 1387: 7504:{\displaystyle H:M(k)_{\mathbb {Q} _{\ell }}\to \operatorname {Rep} _{\ell }(\operatorname {Gal} (k))} 7108: 5653: 3950: 8125: 7806: 7694: 7512: 7073: 6356: 6325: 3326:{\displaystyle (,\alpha )\otimes (,\beta ):=(X\times Y,\pi _{X}^{*}\alpha \cdot \pi _{Y}^{*}\beta ),} 2242: 533: 6009: 2882: 2045: 7786: 7732: 7276:
comes from a similar decomposition of, say, de-Rham cohomology of smooth projective varieties, see
7052:{\displaystyle H^{n}(X,m):=H^{n}(X,\mathbb {Z} (m)):=\operatorname {Hom} _{DM}(X,\mathbb {Z} (m)),} 6659: 6600: 6585: 6529: 6502: 6498: 4803: 1037: 62: 7659: 7599: 7577: 7328: 6834: 6633: 4826: 1918:
notice that the composition of degree 0 correspondences is degree 0. Hence we define morphisms of
1001: 8212: 8168: 8141: 8027: 7909: 7888: 7796: 7763: 7753: 7626: 6915: 6910: 6770:) and others. Moreover, they are linked by comparison isomorphisms, for example Betti cohomology 6577: 4898: 1033: 628: 145: 66: 38: 5679:-homotopies of varieties while the second will give the category of geometric mixed motives the 5140: 2537:{\displaystyle \operatorname {Chow} ^{\operatorname {eff} }(k):=Split(\operatorname {Corr} (k))} 6901:
Beginning with Grothendieck, people have tried to precisely define this theory for many years.
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Composition is the above defined composition of correspondences, and the identity morphism of (
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The motive of a curve can be explicitly understood with relative ease: their Chow ring is just
5308: 5270: 5063: 3202: 2220: 1995: 1548: 186:, however, such a triple contains almost no information outside the context of Grothendieck's 78: 58: 235: 197: 87: 8133: 7716: 7634: 7423:
is equivalent to: the so-called Tate realization, i.e. ℓ-adic cohomology, is a full functor
7294: 7198: 6581: 6540: 4818: 2428: 1535:{\displaystyle \operatorname {Corr} ^{r}(k)(X,Y):=\bigoplus _{i}A^{d_{i}+r}(X_{i}\times Y),} 1173: 1029: 70: 8055: 7978: 7948: 7884: 7852: 6084: 5686:
Also, note that this category has a tensor structure given by the product of varieties, so
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is an exact faithful tensor-functor. Applying the Tannakian formalism, one concludes that
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an integer representing the twist by the Tate motive. The hom-groups are then the colimit
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of pure motives often proceeds in three steps. Below we describe the case of Chow motives
50: 4312:{\displaystyle \operatorname {Chow} (k):=\operatorname {Chow} ^{\operatorname {eff} }(k)} 1255:
It will be useful to describe correspondences of arbitrary degree, although morphisms in
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In the formulation of Grothendieck for smooth projective varieties, a motive is a triple
8129: 7810: 617:{\displaystyle M_{B},M_{\mathrm {DR} },M_{\mathbb {A} ^{f}},M_{\operatorname {cris} ,p}} 8110: 8082: 8031: 7308: 6620: 6510: 6463: 5056: 4596: 297: 125: 5365: 5362:
of bounded complexes of smooth correspondences. Here smooth varieties will be denoted
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Algebraic geometry, Oslo 1970 (Proc. Fifth Nordic Summer-School in Math., Oslo, 1970)
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rational equivalence. The admissible equivalences are given by the definition of an
17: 7901: 7720: 7712: 7633:, but a purely algebraic theory) is used. Its purpose is to shed light on both the 7516: 7348: 7277: 6666: 6592: 6514: 4902: 3953:. The effect is that motives become triples instead of pairs. The Lefschetz motive 7817: 7825: 5579:{\displaystyle {\xrightarrow {j_{U}'+j_{V}'}}\oplus {\xrightarrow {j_{U}-j_{V}}}} 7736: 6767: 4238: 2548:
In other words, effective Chow motives are pairs of smooth projective varieties
7933:, Panoramas et Synthèses, vol. 17, Paris: Société Mathématique de France, 7416:). Here pure motive means pure motive with respect to homological equivalence. 4395:{\displaystyle (X\in \operatorname {SmProj} (k),p:X\vdash X,n\in \mathbb {Z} )} 3949:) a formal inverse (with respect to the tensor product) of a motive called the 6876:
directly gives all the information about the several Weil cohomology theories
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an object of more linear nature, i.e. an object amenable to the techniques of
3191:{\displaystyle (,\alpha )\oplus (,\beta ):=\left(\left,\alpha +\beta \right),} 1059: 7876: 7844: 7715:. Again speaking in rough terms, the Hodge and Tate conjectures are types of 869:{\displaystyle \operatorname {Gal} ({\overline {\mathbb {Q} }},\mathbb {Q} )} 304:. In that article, a motive is a "system of realisations" – that is, a tuple 8294: 8162: 4560:
and the composition of morphisms comes from composition of correspondences.
1223: 689:{\displaystyle \mathbb {Q} ,\mathbb {Q} ,\mathbb {A} ^{f},\mathbb {Q} _{p},} 8237: 8176: 8066:. Mathematical surveys and monographs, 57. American Mathematical Society. 7790: 6914:
itself had been invented before the creation of mixed motives by means of
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All these cohomology theories share common properties, e.g. existence of
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where the dot denotes the product in the Chow ring (i.e., intersection).
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The current state of the theory is that we do have a suitable category
4810: 183: 7735:, it predicts the image of the Galois group, or, more accurately, its 6563:
has a corresponding motive , so the simplest examples of motives are:
4913:(with integral coefficients) it does not admit a motivic t-structure. 7801: 6505:. Another way to handle the question is to attach to a given variety 4622:
Smash-nilpotence equivalence (sometimes called Voevodsky equivalence)
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mapping any pure motive with rational coefficients (over a subfield
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Une introduction aux motifs (motifs purs, motifs mixtes, périodes)
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Betti cohomology is defined for varieties over (subfields of) the
6533: 1585:. Correspondences are often denoted using the "⊢"-notation, e.g., 998:. This data is modeled on the cohomologies of a smooth projective 7656:(pure motives using numerical equivalence) to finite-dimensional 8040:, vol. 2, Providence, R.I.: American Mathematical Society, 7531:
To motivate the (conjectural) motivic Galois group, fix a field
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Le Groupe Fondamental de la Droite Projective Moins Trois Points
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be smooth projective varieties and consider a decomposition of
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between the obvious base changes of these modules, filtrations
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The motivic Galois group is to the theory of motives what the
7298: 6755:{\displaystyle H^{*}(X)\cong H^{*}(X\times \mathbb {A} ^{1}),} 5643:{\displaystyle {\mathcal {DM}}_{\text{gm}}^{\text{eff}}(k,A).} 5228:
Typical examples of prime correspondences come from the graph
77:. Philosophically, a "motif" is the "cohomology essence" of a 6918:. The above category provides a neat way to (re)define it by 5750:
Using the triangulated structure we can construct a triangle
1374:{\displaystyle X=\coprod _{i}X_{i},\qquad d_{i}:=\dim X_{i}.} 8192:(Voevodsky's definition of mixed motives. Highly technical). 7902:"A guided tour through the garden of noncommutative motives" 7618:-vector spaces together with an action of the Galois group. 6230: 6227: 6140: 6137: 6057: 6054: 5884:{\displaystyle \mathbb {P} ^{1}\to \operatorname {Spec} (k)} 5606: 5603: 5344: 5341: 5338: 5335: 5332: 5204: 5201: 5198: 5195: 5192: 5024: 5021: 4985: 4982: 4979: 4809:
Instead of constructing such a category, it was proposed by
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The tensor inverse of the Lefschetz motive is known as the
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Second step: category of pure effective Chow motives, Chow(
2117: 7405:{\displaystyle H:M(k)_{\mathbb {Q} }\to HS_{\mathbb {Q} }} 5125:. Then, we can take the set of prime correspondences from 57:
in the 1960s to unify the vast array of similarly behaved
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Kleiman, Steven L. (1972), "Motives", in Oort, F. (ed.),
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Homological equivalence (in the sense of Weil cohomology)
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The tensor product of morphisms may also be defined. Let
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First step: category of (degree 0) correspondences, Corr(
7814:(technical introduction with comparatively short proofs) 7511:(pure motives up to homological equivalence, continuous 5944:. Taking the iterative tensor product lets us construct 7167:{\displaystyle \mathbb {P} ^{1}\to \operatorname {pt} } 6665:(over any field of characteristic ≠ l) has a canonical 5012:
are separated schemes of finite type. We will also let
6820:{\displaystyle H_{\text{Betti}}^{*}(X,\mathbb {Z} /n)} 6576:
These 'equations' hold in many situations, namely for
6517:. This "linearization" goes usually under the name of 6480:, hence Jacobians embed into the category of motives. 5650:
Note that the first class of morphisms are localizing
4511: 4250:. Then we define the category of pure Chow motives by 2676: 8244: 7662: 7602: 7580: 7429: 7356: 7331: 7311: 7297:, may be neatly reformulated using motives: it holds 7145: 7111: 7076: 6927: 6872:
In particular, calculating the motive of any variety
6837: 6776: 6692: 6636: 6466: 6427: 6390: 6359: 6328: 6130: 6087: 6050: 6012: 5983: 5950: 5897: 5850: 5834:{\displaystyle \mathbb {L} \to \to {\xrightarrow {}}} 5759: 5692: 5656: 5599: 5460: 5401: 5368: 5316: 5273: 5234: 5189: 5143: 5079: 5018: 4976: 4940: 4829: 4752: 4696: 4661: 4569: 4414: 4332: 4259: 4168: 4113: 3966: 3631: 3345: 3214: 3095: 2870: 2720: 2573: 2472: 2437: 2254: 2175: 2140: 2033: 1998: 1959: 1924: 1889: 1731: 1674: 1623: 1591: 1551: 1433: 1390: 1308: 1261: 1232: 1202: 1176: 1136: 1088: 1004: 971: 944: 902: 882: 833: 807: 708: 639: 544: 313: 276: 238: 200: 148: 128: 90: 8111:"Motives, numerical equivalence and semi-simplicity" 8008:Huber, Annette; Müller-Stach, Stefan (2017-03-20), 5008:as the category of quasi-projective varieties over 4897:. Already this category is useful in applications. 8269: 7670: 7610: 7588: 7503: 7404: 7339: 7317: 7166: 7131: 7093: 7051: 6845: 6819: 6754: 6644: 6472: 6453:{\displaystyle \mathbb {Z} \oplus {\text{Pic}}(C)} 6452: 6405: 6376: 6345: 6301: 6105: 6073: 6036: 5998: 5965: 5932: 5883: 5833: 5734: 5671: 5642: 5578: 5440: 5380: 5354: 5291: 5259: 5211: 5171: 5097: 5039: 5000: 4962: 4863: 4792:{\displaystyle \operatorname {Ext} _{MM}^{*}(1,?)} 4791: 4732: 4679: 4587: 4549: 4394: 4311: 4225: 4148: 4076: 3868: 3477: 3325: 3190: 3086:. The direct sum of effective motives is given by 3045: 2827: 2705: 2536: 2455: 2407: 2193: 2161: 2123: 2016: 1984: 1942: 1910: 1869: 1714: 1660: 1609: 1573: 1534: 1404: 1373: 1279: 1244: 1214: 1188: 1154: 1106: 1012: 990: 957: 927: 888: 868: 819: 790: 688: 616: 521: 288: 262: 224: 166: 134: 114: 8081:Friedlander, Eric M.; Grayson, Daniel R. (2005). 7212:, which states the existence of algebraic cycles 6623:, it has the advantage of being defined over the 4405:such that morphisms are given by correspondences 8178:Cycles, transfers, and motivic homology theories 6192: 4733:{\displaystyle \operatorname {Var} (k)\to MM(k)} 3933:Third step: category of pure Chow motives, Chow( 3071:, is a functor. The motive is often called the 2427:The transition to motives is made by taking the 1287:are correspondences of degree 0. In detail, let 8277:: Arithmetic spin structures on elliptic curves 7896:(high-level introduction to motives in French). 1196:, which can be associated with their graphs in 8156:, Groningen: Wolters-Noordhoff, pp. 53–82 7205:), assuming the standard conjectures to hold. 4883:would then be accomplished by a (conjectural) 1985:{\displaystyle \Gamma _{f}\subseteq X\times Y} 699:respectively, various comparison isomorphisms 1953:The following association is a functor (here 296:. A more object-focused approach is taken by 8: 7833:Notices of the American Mathematical Society 7527:Tannakian formalism and motivic Galois group 7139:which in Voevodsky's setting is the complex 5260:{\displaystyle \Gamma _{f}\subset X\times Y} 2819: 2769: 2697: 2615: 1162:are simply smooth projective varieties over 8158:(adequate equivalence relations on cycles). 7286:, stating the concordance of numerical and 6857:-adic cohomology with finite coefficients. 5973:. If we have an effective geometric motive 4963:{\displaystyle A=\mathbb {Q} ,\mathbb {Z} } 2162:{\displaystyle \operatorname {SmProj} (k),} 991:{\displaystyle M_{\operatorname {cris} ,p}} 6853:with finite coefficients is isomorphic to 6656:, it is a differential-geometric invariant 4817:having the properties one expects for the 1047:. The general hope is that equations like 27:Structure for unifying cohomology theories 8321:Topological methods of algebraic geometry 8256: 8246: 8245: 8243: 7913: 7800: 7664: 7663: 7661: 7604: 7603: 7601: 7582: 7581: 7579: 7471: 7456: 7452: 7451: 7449: 7428: 7396: 7395: 7394: 7378: 7377: 7376: 7355: 7333: 7332: 7330: 7310: 7152: 7148: 7147: 7144: 7113: 7112: 7110: 7078: 7077: 7075: 7021: 7020: 6999: 6976: 6975: 6960: 6932: 6926: 6839: 6838: 6836: 6806: 6802: 6801: 6786: 6781: 6775: 6740: 6736: 6735: 6719: 6697: 6691: 6638: 6637: 6635: 6465: 6436: 6429: 6428: 6426: 6389: 6361: 6360: 6358: 6330: 6329: 6327: 6243: 6235: 6226: 6225: 6223: 6195: 6136: 6135: 6129: 6086: 6062: 6053: 6052: 6049: 6011: 5982: 5949: 5914: 5913: 5896: 5857: 5853: 5852: 5849: 5810: 5777: 5773: 5772: 5761: 5760: 5758: 5691: 5663: 5659: 5658: 5655: 5616: 5611: 5602: 5601: 5598: 5558: 5545: 5535: 5502: 5486: 5476: 5459: 5417: 5413: 5412: 5400: 5367: 5355:{\displaystyle K^{b}({\mathcal {SmCor}})} 5331: 5330: 5321: 5315: 5272: 5239: 5233: 5191: 5190: 5188: 5183:. Then, we can form an additive category 5148: 5142: 5078: 5029: 5020: 5019: 5017: 4990: 4978: 4977: 4975: 4956: 4955: 4948: 4947: 4939: 4834: 4828: 4765: 4757: 4751: 4695: 4660: 4568: 4510: 4480: 4413: 4385: 4384: 4331: 4282: 4258: 4203: 4199: 4198: 4188: 4184: 4183: 4169: 4167: 4135: 4123: 4119: 4118: 4112: 4065: 4061: 4060: 4050: 4046: 4045: 4035: 4022: 4018: 4017: 3982: 3978: 3977: 3965: 3860: 3850: 3845: 3832: 3822: 3817: 3804: 3791: 3774: 3761: 3742: 3729: 3710: 3697: 3678: 3665: 3649: 3636: 3630: 3418: 3408: 3350: 3344: 3308: 3303: 3287: 3282: 3213: 3094: 3018: 2981: 2919: 2905: 2877: 2869: 2787: 2719: 2675: 2589: 2572: 2477: 2471: 2436: 2345: 2317: 2289: 2253: 2174: 2139: 2108: 2040: 2032: 1997: 1964: 1958: 1923: 1911:{\displaystyle \operatorname {Corr} (k),} 1888: 1834: 1807: 1799: 1777: 1769: 1748: 1730: 1685: 1673: 1634: 1622: 1590: 1556: 1550: 1514: 1493: 1488: 1478: 1438: 1432: 1398: 1397: 1389: 1362: 1343: 1329: 1319: 1307: 1260: 1231: 1201: 1175: 1170:. They generalize morphisms of varieties 1135: 1087: 1006: 1005: 1003: 976: 970: 949: 943: 914: 910: 909: 907: 901: 881: 859: 858: 846: 845: 843: 832: 806: 778: 765: 744: 740: 739: 737: 714: 713: 707: 677: 673: 672: 662: 658: 657: 649: 648: 641: 640: 638: 602: 587: 583: 582: 580: 563: 562: 549: 543: 508: 483: 460: 447: 426: 422: 421: 419: 396: 395: 376: 361: 357: 356: 354: 337: 336: 323: 312: 275: 237: 199: 147: 127: 89: 7201:(which are proven by different means by 6117:an effective geometric mixed motive and 5047:be the subcategory of smooth varieties. 4909:uses these motives as a key ingredient. 4687:, together with a contravariant functor 4634:Chow motive modulo algebraic equivalence 4588:{\displaystyle \operatorname {Chow} (k)} 2456:{\displaystyle \operatorname {Corr} (k)} 2194:{\displaystyle \operatorname {Corr} (k)} 1943:{\displaystyle \operatorname {Corr} (k)} 1280:{\displaystyle \operatorname {Corr} (k)} 1155:{\displaystyle \operatorname {Corr} (k)} 1107:{\displaystyle \operatorname {Chow} (k)} 8002:. (detailed exposition of Chow motives) 7871:(in French) (198): 11, 333–349 (1992), 6630:de Rham cohomology (for varieties over 1883:Returning to constructing the category 1581:denotes the Chow-cycles of codimension 270:is given by a correspondence of degree 7645:theory. Fix a Weil cohomology theory 7256:decomposes in graded pieces of weight 7704:, known as the motivic Galois group. 7558:to the (finite) set of embeddings of 6555:The search for a universal cohomology 5051:Smooth varieties with correspondences 4149:{\displaystyle =\mathbf {1} \oplus L} 2245:. The sum of morphisms is defined by 1412:, then the correspondences of degree 928:{\displaystyle M_{\mathbb {A} ^{f}},} 7: 8198:"Realization of Voevodsky's motives" 7105:-th tensor power of the Tate object 6074:{\displaystyle {\mathcal {DM}}_{gm}} 3558:) be morphisms of motives. Then let 8033:Lecture notes on motivic cohomology 5109:and surjective over a component of 3205:of effective motives is defined by 7224:inducing the canonical projectors 5236: 5212:{\displaystyle {\mathcal {SmCor}}} 5098:{\displaystyle W\subset X\times Y} 5001:{\displaystyle {\mathcal {Var}}/k} 3063: := denotes the diagonal of 3015: 2978: 2926: 2923: 2920: 2916: 2912: 2909: 2906: 2105: 1961: 782: 779: 718: 715: 567: 564: 484: 464: 461: 400: 397: 341: 338: 25: 8270:{\displaystyle \mathbb {Q} (1/4)} 7792:A DG guide to Voevodsky's motives 7693:is equivalent to the category of 7252:) implies that every pure motive 5933:{\displaystyle A(1)=\mathbb {L} } 5040:{\displaystyle {\mathcal {Sm}}/k} 1610:{\displaystyle \alpha :X\vdash Y} 1405:{\displaystyle r\in \mathbb {Z} } 8293: 7132:{\displaystyle \mathbb {Z} (1),} 6591:, the number of points over any 6460:for any smooth projective curve 5672:{\displaystyle \mathbb {A} ^{1}} 5303:Localizing the homotopy category 4170: 4136: 3073:motive associated to the variety 1950:to be degree 0 correspondences. 1722:their composition is defined by 142:is a smooth projective variety, 8175:; Friedlander, Eric M. (2000), 7955:Jannsen, Uwe; Kleiman, Steven; 7641:, the outstanding questions in 7094:{\displaystyle \mathbb {Z} (m)} 6551:is more than just this number. 6484:Explanation for non-specialists 6377:{\displaystyle \mathbb {Z} (n)} 6346:{\displaystyle \mathbb {Q} (n)} 5593:of effective geometric motives 4469: 4000: 3786: 3413: 3407: 1338: 53:usage) is a theory proposed by 8282:What are "Fractional Motives"? 8264: 8250: 8163:Motives — Grothendieck’s Dream 7498: 7495: 7489: 7480: 7464: 7446: 7439: 7384: 7373: 7366: 7347:) to its Hodge structure is a 7185:Conjectures related to motives 7181:in the triangulated category. 7158: 7123: 7117: 7088: 7082: 7043: 7040: 7034: 7031: 7025: 7011: 6989: 6986: 6980: 6966: 6950: 6938: 6814: 6792: 6746: 6725: 6709: 6703: 6673:of the (absolute) Galois group 6627:and is a topological invariant 6447: 6441: 6400: 6394: 6371: 6365: 6340: 6334: 6296: 6293: 6281: 6272: 6260: 6254: 6185: 6182: 6170: 6164: 6152: 6149: 6100: 6088: 6037:{\displaystyle M\otimes A(k).} 6028: 6022: 5993: 5987: 5960: 5954: 5927: 5918: 5907: 5901: 5878: 5872: 5863: 5825: 5816: 5807: 5804: 5798: 5789: 5786: 5783: 5768: 5765: 5729: 5717: 5711: 5705: 5699: 5693: 5634: 5622: 5573: 5567: 5532: 5526: 5520: 5514: 5473: 5461: 5435: 5429: 5426: 5423: 5402: 5375: 5369: 5349: 5327: 5283: 5166: 5154: 4858: 4855: 4849: 4840: 4813:to first construct a category 4786: 4774: 4727: 4721: 4712: 4709: 4703: 4674: 4668: 4609:equivalence relation on cycles 4582: 4576: 4507: 4495: 4463: 4445: 4442: 4439: 4421: 4389: 4354: 4348: 4333: 4306: 4300: 4297: 4291: 4272: 4266: 4129: 4114: 4104:)), then the elegant equation 4071: 4041: 3994: 3973: 3780: 3754: 3748: 3722: 3716: 3690: 3684: 3658: 3460: 3457: 3445: 3439: 3427: 3392: 3389: 3377: 3371: 3359: 3317: 3263: 3257: 3248: 3242: 3239: 3233: 3224: 3218: 3215: 3138: 3129: 3123: 3120: 3114: 3105: 3099: 3096: 3008: 3002: 2999: 2987: 2968: 2962: 2956: 2953: 2941: 2935: 2902: 2897: 2891: 2788: 2763: 2760: 2748: 2742: 2730: 2727: 2672: 2666: 2654: 2636: 2630: 2618: 2604: 2598: 2531: 2528: 2522: 2513: 2492: 2486: 2450: 2444: 2338: 2335: 2323: 2307: 2295: 2279: 2267: 2188: 2182: 2153: 2147: 2101: 2088: 2078: 2072: 2063: 2060: 2054: 2008: 1937: 1931: 1902: 1896: 1861: 1849: 1819: 1813: 1789: 1783: 1706: 1694: 1655: 1643: 1568: 1562: 1526: 1507: 1468: 1456: 1453: 1447: 1274: 1268: 1180: 1149: 1143: 1101: 1095: 863: 840: 257: 239: 219: 201: 109: 91: 1: 8205:Journal of Algebraic Geometry 7562:into an algebraic closure of 6606:The general idea is that one 4970:be our coefficient ring. Set 1068:adequate equivalence relation 7789:; Vologodsky, Vadim (2007), 7671:{\displaystyle \mathbb {Q} } 7611:{\displaystyle \mathbb {Q} } 7589:{\displaystyle \mathbb {Q} } 7539:finite separable extensions 7340:{\displaystyle \mathbb {C} } 6846:{\displaystyle \mathbb {C} } 6645:{\displaystyle \mathbb {C} } 4864:{\displaystyle D^{b}(MM(k))} 1013:{\displaystyle \mathbb {Q} } 850: 8300:Motive (algebraic geometry) 8038:Clay Mathematics Monographs 7860:Serre, Jean-Pierre (1991), 7856:(motives-for-dummies text). 7248:) (for any Weil cohomology 7210:Künneth standard conjecture 6669:action, i.e. has values in 5267:of a morphism of varieties 5224:Examples of correspondences 1299:into connected components: 167:{\displaystyle p:X\vdash X} 8342: 8030:; Weibel, Charles (2006), 7818:Motives over Finite Fields 7723:; however in terms of the 7649:. It gives a functor from 5307:From here we can form the 5179:. Its elements are called 5172:{\displaystyle C_{A}(X,Y)} 4323:A motive is then a triple 3941:To proceed to motives, we 1074:Definition of pure motives 29: 7900:Tabauda, Goncalo (2011), 7535:and consider the functor 6081:as the category of pairs 5746:Inverting the Tate motive 5735:{\displaystyle \otimes =} 4926:Here we will fix a field 4599:pseudo-abelian category. 1245:{\displaystyle X\times Y} 1215:{\displaystyle X\times Y} 958:{\displaystyle \phi _{p}} 190:of pure motives, where a 8010:Periods and Nori Motives 7993:The standard conjectures 6684:Mayer-Vietoris sequences 5292:{\displaystyle f:X\to Y} 4088:If we define the motive 3608:) be representatives of 2017:{\displaystyle f:X\to Y} 1574:{\displaystyle A^{k}(X)} 937:"Frobenius" automorphism 8196:Huber, Annette (2000). 7826:"What is ... a motive?" 7759:Presheaf with transfers 7288:homological equivalence 6597:multiplicative notation 6559:Each algebraic variety 6532:of a smooth projective 5844:from the canonical map 5681:Mayer–Vietoris sequence 4917:Geometric Mixed Motives 4654:abelian tensor category 4644:For a fixed base field 3084:pseudo-abelian category 2429:pseudo-abelian envelope 1222:, to fixed dimensional 263:{\displaystyle (Y,q,n)} 225:{\displaystyle (X,p,m)} 115:{\displaystyle (X,p,m)} 32:Motive (disambiguation) 8298:Quotations related to 8271: 7769:L-functions of motives 7729:Galois representations 7672: 7629:theory (going back to 7612: 7590: 7505: 7406: 7341: 7319: 7168: 7133: 7095: 7053: 6847: 6821: 6756: 6686:, homotopy invariance 6677:crystalline cohomology 6646: 6474: 6454: 6407: 6378: 6347: 6303: 6107: 6075: 6038: 6000: 5967: 5934: 5885: 5835: 5736: 5673: 5644: 5580: 5442: 5382: 5356: 5293: 5261: 5213: 5181:finite correspondences 5173: 5099: 5041: 5002: 4964: 4905:-winning proof of the 4865: 4793: 4734: 4681: 4603:Other types of motives 4589: 4551: 4396: 4313: 4227: 4150: 4078: 3870: 3479: 3327: 3192: 3047: 2829: 2707: 2538: 2457: 2409: 2195: 2163: 2125: 2018: 1986: 1944: 1912: 1871: 1716: 1662: 1611: 1575: 1536: 1406: 1375: 1281: 1246: 1216: 1190: 1189:{\displaystyle X\to Y} 1156: 1108: 1045:crystalline cohomology 1014: 992: 959: 929: 890: 870: 821: 792: 690: 618: 523: 290: 264: 226: 168: 136: 116: 75:crystalline cohomology 55:Alexander Grothendieck 8272: 8109:Jannsen, Uwe (1992), 8062:Levine, Marc (1998). 7824:Mazur, Barry (2004), 7673: 7631:Tannaka–Krein duality 7621:The objective of the 7613: 7591: 7506: 7407: 7342: 7320: 7169: 7134: 7096: 7054: 6848: 6822: 6757: 6654:mixed Hodge structure 6647: 6475: 6455: 6408: 6379: 6348: 6304: 6108: 6106:{\displaystyle (M,n)} 6076: 6039: 6001: 5968: 5935: 5886: 5836: 5737: 5674: 5645: 5591:triangulated category 5589:then we can form the 5581: 5443: 5383: 5357: 5294: 5262: 5214: 5174: 5133:and construct a free 5105:which is finite over 5100: 5042: 5003: 4965: 4866: 4794: 4735: 4682: 4680:{\displaystyle MM(k)} 4628:Numerical equivalence 4619:Algebraic equivalence 4590: 4552: 4513: such that  4397: 4314: 4228: 4151: 4079: 3929:are the projections. 3871: 3480: 3328: 3193: 3048: 2830: 2708: 2678: such that  2539: 2458: 2410: 2196: 2164: 2126: 2019: 1992:denotes the graph of 1987: 1945: 1913: 1872: 1717: 1663: 1612: 1576: 1537: 1407: 1376: 1282: 1247: 1217: 1191: 1157: 1109: 1015: 993: 960: 930: 891: 889:{\displaystyle \phi } 871: 822: 793: 691: 619: 524: 291: 265: 227: 169: 137: 117: 8242: 8103:Reference Literature 8084:Handbook of K-Theory 7986:Tannakian categories 7929:André, Yves (2004), 7787:Beilinson, Alexander 7660: 7623:motivic Galois group 7600: 7578: 7427: 7354: 7329: 7309: 7191:standard conjectures 7143: 7109: 7074: 6925: 6835: 6827:of a smooth variety 6774: 6690: 6634: 6601:local zeta-functions 6464: 6425: 6406:{\displaystyle A(n)} 6388: 6357: 6326: 6128: 6085: 6048: 6010: 5999:{\displaystyle M(k)} 5981: 5966:{\displaystyle A(k)} 5948: 5895: 5848: 5757: 5690: 5654: 5597: 5458: 5441:{\displaystyle \to } 5399: 5366: 5314: 5271: 5232: 5187: 5141: 5115:prime correspondence 5077: 5016: 4974: 4938: 4827: 4750: 4694: 4659: 4616:Rational equivalence 4567: 4412: 4330: 4257: 4166: 4111: 3964: 3629: 3343: 3212: 3093: 2868: 2718: 2571: 2470: 2435: 2252: 2243:preadditive category 2173: 2138: 2031: 1996: 1957: 1922: 1887: 1729: 1672: 1621: 1589: 1549: 1431: 1388: 1306: 1259: 1230: 1200: 1174: 1166:. The morphisms are 1134: 1086: 1002: 969: 942: 900: 880: 831: 805: 706: 637: 542: 311: 274: 236: 198: 146: 126: 88: 30:For other uses, see 18:Motive (mathematics) 8326:Homological algebra 8169:Voevodsky, Vladimir 8130:1992InMat.107..447J 8028:Voevodsky, Vladimir 7906:Journal of K-theory 7811:2006math......4004B 7174:shifted by –2, and 6791: 6503:birational geometry 6499:algebraic varieties 6313:Examples of motives 6248: 5828: 5621: 5564: 5511: 5510: 5494: 4804:Alexander Beilinson 4770: 4094:trivial Tate motive 3855: 3827: 3313: 3292: 2846:) is defined to be 2556:correspondences α: 1812: 1782: 820:{\displaystyle W,F} 289:{\displaystyle n-m} 63:singular cohomology 59:cohomology theories 8316:Algebraic geometry 8267: 8138:10.1007/BF01231898 7957:Serre, Jean-Pierre 7764:Mixed Hodge module 7754:Motivic cohomology 7709:Mumford–Tate group 7668: 7627:Tannakian category 7608: 7586: 7519:of the base field 7501: 7402: 7337: 7315: 7272:. The terminology 7164: 7129: 7091: 7049: 6916:algebraic K-theory 6911:Motivic cohomology 6905:Motivic cohomology 6843: 6817: 6777: 6752: 6642: 6578:de Rham cohomology 6470: 6450: 6403: 6374: 6343: 6299: 6224: 6218: 6103: 6071: 6034: 5996: 5963: 5930: 5881: 5831: 5732: 5669: 5640: 5600: 5576: 5498: 5482: 5438: 5378: 5352: 5289: 5257: 5209: 5169: 5095: 5037: 4998: 4960: 4930:of characteristic 4899:Vladimir Voevodsky 4861: 4789: 4753: 4730: 4677: 4648:, the category of 4585: 4547: 4515: 4392: 4309: 4223: 4146: 4074: 3866: 3841: 3813: 3475: 3323: 3299: 3278: 3188: 3078:As intended, Chow( 3043: 3038: 2825: 2703: 2680: 2534: 2453: 2405: 2191: 2159: 2121: 2116: 2014: 1982: 1940: 1908: 1867: 1795: 1765: 1712: 1658: 1607: 1571: 1532: 1483: 1402: 1371: 1324: 1277: 1242: 1212: 1186: 1152: 1104: 1034:de Rham cohomology 1010: 988: 955: 925: 886: 866: 817: 788: 686: 614: 519: 286: 260: 222: 164: 132: 112: 67:de Rham cohomology 39:algebraic geometry 8232:Future directions 8188:978-0-691-04814-7 8118:Inventiones Math. 8094:978-3-540-23019-9 8073:978-0-8218-0785-9 8047:978-0-8218-3847-1 8019:978-3-319-50925-9 8000:Classical motives 7970:978-0-8218-1636-3 7940:978-2-85629-164-1 7839:(10): 1214–1216, 7318:{\displaystyle k} 7303:Hodge realization 7208:For example, the 7070:are integers and 6862:theory of motives 6784: 6526:theory of motives 6473:{\displaystyle C} 6439: 6417:Motives of curves 6191: 5829: 5619: 5614: 5565: 5512: 5309:homotopy category 5073:closed subscheme 4907:Milnor conjecture 4652:is a conjectural 4514: 3411: 2861:The association, 2679: 2201:has direct sums ( 1474: 1315: 853: 174:is an idempotent 135:{\displaystyle X} 16:(Redirected from 8333: 8297: 8276: 8274: 8273: 8268: 8260: 8249: 8227: 8225: 8219:. Archived from 8202: 8191: 8161:Milne, James S. 8157: 8148: 8115: 8098: 8077: 8058: 8022: 7981: 7951: 7918: 7917: 7895: 7893: 7887:, archived from 7866: 7855: 7830: 7813: 7804: 7795:, p. 4004, 7733:étale cohomology 7717:invariant theory 7677: 7675: 7674: 7669: 7667: 7635:Hodge conjecture 7617: 7615: 7614: 7609: 7607: 7595: 7593: 7592: 7587: 7585: 7515:of the absolute 7510: 7508: 7507: 7502: 7476: 7475: 7463: 7462: 7461: 7460: 7455: 7414:Hodge structures 7411: 7409: 7408: 7403: 7401: 7400: 7399: 7383: 7382: 7381: 7346: 7344: 7343: 7338: 7336: 7324: 7322: 7321: 7316: 7295:Hodge conjecture 7199:Weil conjectures 7177:means the usual 7173: 7171: 7170: 7165: 7157: 7156: 7151: 7138: 7136: 7135: 7130: 7116: 7100: 7098: 7097: 7092: 7081: 7058: 7056: 7055: 7050: 7024: 7007: 7006: 6979: 6965: 6964: 6937: 6936: 6852: 6850: 6849: 6844: 6842: 6826: 6824: 6823: 6818: 6810: 6805: 6790: 6785: 6782: 6761: 6759: 6758: 6753: 6745: 6744: 6739: 6724: 6723: 6702: 6701: 6663:-adic cohomology 6651: 6649: 6648: 6643: 6641: 6589:-adic cohomology 6582:Betti cohomology 6541:Betti cohomology 6513:, for example a 6479: 6477: 6476: 6471: 6459: 6457: 6456: 6451: 6440: 6437: 6432: 6412: 6410: 6409: 6404: 6383: 6381: 6380: 6375: 6364: 6352: 6350: 6349: 6344: 6333: 6308: 6306: 6305: 6300: 6250: 6249: 6247: 6242: 6234: 6233: 6217: 6145: 6144: 6143: 6120: 6116: 6112: 6110: 6109: 6104: 6080: 6078: 6077: 6072: 6070: 6069: 6061: 6060: 6043: 6041: 6040: 6035: 6005: 6003: 6002: 5997: 5976: 5972: 5970: 5969: 5964: 5940:and call it the 5939: 5937: 5936: 5931: 5917: 5890: 5888: 5887: 5882: 5862: 5861: 5856: 5840: 5838: 5837: 5832: 5830: 5811: 5782: 5781: 5776: 5764: 5741: 5739: 5738: 5733: 5678: 5676: 5675: 5670: 5668: 5667: 5662: 5649: 5647: 5646: 5641: 5620: 5617: 5615: 5612: 5610: 5609: 5585: 5583: 5582: 5577: 5566: 5563: 5562: 5550: 5549: 5536: 5513: 5506: 5490: 5477: 5447: 5445: 5444: 5439: 5422: 5421: 5416: 5387: 5385: 5384: 5381:{\displaystyle } 5379: 5361: 5359: 5358: 5353: 5348: 5347: 5326: 5325: 5298: 5296: 5295: 5290: 5266: 5264: 5263: 5258: 5244: 5243: 5218: 5216: 5215: 5210: 5208: 5207: 5178: 5176: 5175: 5170: 5153: 5152: 5136: 5132: 5128: 5124: 5120: 5112: 5108: 5104: 5102: 5101: 5096: 5068: 5061: 5046: 5044: 5043: 5038: 5033: 5028: 5027: 5011: 5007: 5005: 5004: 4999: 4994: 4989: 4988: 4969: 4967: 4966: 4961: 4959: 4951: 4933: 4929: 4870: 4868: 4867: 4862: 4839: 4838: 4819:derived category 4798: 4796: 4795: 4790: 4769: 4764: 4739: 4737: 4736: 4731: 4686: 4684: 4683: 4678: 4594: 4592: 4591: 4586: 4556: 4554: 4553: 4548: 4516: 4512: 4491: 4490: 4401: 4399: 4398: 4393: 4388: 4318: 4316: 4315: 4310: 4287: 4286: 4232: 4230: 4229: 4224: 4219: 4215: 4208: 4207: 4202: 4193: 4192: 4187: 4173: 4155: 4153: 4152: 4147: 4139: 4128: 4127: 4122: 4100: := h(Spec( 4083: 4081: 4080: 4075: 4070: 4069: 4064: 4055: 4054: 4049: 4040: 4039: 4027: 4026: 4021: 3987: 3986: 3981: 3951:Lefschetz motive 3875: 3873: 3872: 3867: 3865: 3864: 3854: 3849: 3837: 3836: 3826: 3821: 3809: 3808: 3796: 3795: 3779: 3778: 3766: 3765: 3747: 3746: 3734: 3733: 3715: 3714: 3702: 3701: 3683: 3682: 3670: 3669: 3654: 3653: 3641: 3640: 3484: 3482: 3481: 3476: 3423: 3422: 3412: 3409: 3355: 3354: 3332: 3330: 3329: 3324: 3312: 3307: 3291: 3286: 3197: 3195: 3194: 3189: 3184: 3180: 3167: 3163: 3052: 3050: 3049: 3044: 3042: 3041: 3023: 3022: 2986: 2985: 2931: 2930: 2929: 2834: 2832: 2831: 2826: 2791: 2712: 2710: 2709: 2704: 2681: 2677: 2611: 2607: 2594: 2593: 2543: 2541: 2540: 2535: 2482: 2481: 2462: 2460: 2459: 2454: 2414: 2412: 2411: 2406: 2401: 2397: 2396: 2392: 2374: 2370: 2350: 2349: 2322: 2321: 2294: 2293: 2240: 2218: 2200: 2198: 2197: 2192: 2168: 2166: 2165: 2160: 2130: 2128: 2127: 2122: 2120: 2119: 2113: 2112: 2023: 2021: 2020: 2015: 1991: 1989: 1988: 1983: 1969: 1968: 1949: 1947: 1946: 1941: 1917: 1915: 1914: 1909: 1876: 1874: 1873: 1868: 1845: 1844: 1826: 1822: 1811: 1806: 1781: 1776: 1759: 1758: 1721: 1719: 1718: 1713: 1690: 1689: 1667: 1665: 1664: 1659: 1639: 1638: 1616: 1614: 1613: 1608: 1580: 1578: 1577: 1572: 1561: 1560: 1541: 1539: 1538: 1533: 1519: 1518: 1506: 1505: 1498: 1497: 1482: 1443: 1442: 1411: 1409: 1408: 1403: 1401: 1380: 1378: 1377: 1372: 1367: 1366: 1348: 1347: 1334: 1333: 1323: 1286: 1284: 1283: 1278: 1251: 1249: 1248: 1243: 1221: 1219: 1218: 1213: 1195: 1193: 1192: 1187: 1161: 1159: 1158: 1153: 1113: 1111: 1110: 1105: 1041:-adic cohomology 1030:Betti cohomology 1019: 1017: 1016: 1011: 1009: 997: 995: 994: 989: 987: 986: 964: 962: 961: 956: 954: 953: 934: 932: 931: 926: 921: 920: 919: 918: 913: 895: 893: 892: 887: 875: 873: 872: 867: 862: 854: 849: 844: 826: 824: 823: 818: 797: 795: 794: 789: 787: 786: 785: 757: 756: 749: 748: 743: 729: 728: 721: 695: 693: 692: 687: 682: 681: 676: 667: 666: 661: 652: 644: 623: 621: 620: 615: 613: 612: 594: 593: 592: 591: 586: 572: 571: 570: 554: 553: 528: 526: 525: 520: 518: 514: 513: 512: 488: 487: 469: 468: 467: 439: 438: 431: 430: 425: 411: 410: 403: 387: 386: 368: 367: 366: 365: 360: 346: 345: 344: 328: 327: 295: 293: 292: 287: 269: 267: 266: 261: 231: 229: 228: 223: 173: 171: 170: 165: 141: 139: 138: 133: 121: 119: 118: 113: 71:etale cohomology 21: 8341: 8340: 8336: 8335: 8334: 8332: 8331: 8330: 8306: 8305: 8290: 8240: 8239: 8234: 8223: 8200: 8195: 8189: 8167: 8151: 8113: 8108: 8105: 8095: 8080: 8074: 8061: 8048: 8025: 8020: 8007: 7971: 7959:, eds. (1994), 7954: 7941: 7928: 7925: 7899: 7891: 7864: 7859: 7828: 7823: 7785: 7782: 7780:Survey Articles 7777: 7749:Ring of periods 7745: 7725:Tate conjecture 7699:algebraic group 7695:representations 7691: 7658: 7657: 7654: 7643:algebraic cycle 7639:Tate conjecture 7598: 7597: 7576: 7575: 7529: 7513:representations 7467: 7450: 7445: 7425: 7424: 7421:Tate conjecture 7419:Similarly, the 7390: 7372: 7352: 7351: 7327: 7326: 7307: 7306: 7269: 7187: 7146: 7141: 7140: 7107: 7106: 7072: 7071: 6995: 6956: 6928: 6923: 6922: 6907: 6893: 6882: 6833: 6832: 6772: 6771: 6762:the product of 6734: 6715: 6693: 6688: 6687: 6671:representations 6652:) comes with a 6632: 6631: 6621:complex numbers 6612:Weil cohomology 6557: 6486: 6462: 6461: 6423: 6422: 6419: 6386: 6385: 6355: 6354: 6324: 6323: 6320: 6315: 6219: 6131: 6126: 6125: 6118: 6114: 6083: 6082: 6051: 6046: 6045: 6008: 6007: 5979: 5978: 5974: 5946: 5945: 5893: 5892: 5851: 5846: 5845: 5771: 5755: 5754: 5748: 5688: 5687: 5657: 5652: 5651: 5595: 5594: 5554: 5541: 5456: 5455: 5411: 5397: 5396: 5364: 5363: 5317: 5312: 5311: 5305: 5269: 5268: 5235: 5230: 5229: 5226: 5185: 5184: 5144: 5139: 5138: 5134: 5130: 5126: 5122: 5118: 5110: 5106: 5075: 5074: 5066: 5059: 5053: 5014: 5013: 5009: 4972: 4971: 4936: 4935: 4931: 4927: 4924: 4919: 4830: 4825: 4824: 4748: 4747: 4692: 4691: 4657: 4656: 4642: 4605: 4565: 4564: 4476: 4410: 4409: 4328: 4327: 4278: 4255: 4254: 4197: 4182: 4181: 4177: 4164: 4163: 4117: 4109: 4108: 4059: 4044: 4031: 4016: 3976: 3962: 3961: 3939: 3927: 3920: 3914: 3907: 3900: 3893: 3885: 3856: 3828: 3800: 3787: 3770: 3757: 3738: 3725: 3706: 3693: 3674: 3661: 3645: 3632: 3627: 3626: 3620: 3613: 3607: 3600: 3589: 3582: 3575: 3564: 3557: 3550: 3543: 3536: 3529: 3522: 3515: 3508: 3501: 3494: 3414: 3346: 3341: 3340: 3210: 3209: 3153: 3149: 3148: 3144: 3091: 3090: 3062: 3037: 3036: 3014: 2997: 2991: 2990: 2977: 2951: 2945: 2944: 2915: 2900: 2878: 2866: 2865: 2716: 2715: 2585: 2584: 2580: 2569: 2568: 2473: 2468: 2467: 2433: 2432: 2425: 2382: 2378: 2360: 2356: 2355: 2351: 2341: 2313: 2285: 2250: 2249: 2224: 2221:tensor products 2202: 2171: 2170: 2136: 2135: 2115: 2114: 2104: 2095: 2094: 2082: 2081: 2041: 2029: 2028: 1994: 1993: 1960: 1955: 1954: 1920: 1919: 1885: 1884: 1830: 1764: 1760: 1744: 1727: 1726: 1681: 1670: 1669: 1630: 1619: 1618: 1587: 1586: 1552: 1547: 1546: 1510: 1489: 1484: 1434: 1429: 1428: 1386: 1385: 1358: 1339: 1325: 1304: 1303: 1257: 1256: 1228: 1227: 1198: 1197: 1172: 1171: 1168:correspondences 1132: 1131: 1130:The objects of 1128: 1084: 1083: 1076: 1026: 1000: 999: 972: 967: 966: 945: 940: 939: 908: 903: 898: 897: 878: 877: 829: 828: 803: 802: 761: 738: 733: 709: 704: 703: 671: 656: 635: 634: 598: 581: 576: 558: 545: 540: 539: 504: 479: 443: 420: 415: 391: 372: 355: 350: 332: 319: 318: 314: 309: 308: 272: 271: 234: 233: 196: 195: 144: 143: 124: 123: 86: 85: 35: 28: 23: 22: 15: 12: 11: 5: 8339: 8337: 8329: 8328: 8323: 8318: 8308: 8307: 8304: 8303: 8289: 8288:External links 8286: 8285: 8284: 8279: 8266: 8263: 8259: 8255: 8252: 8248: 8233: 8230: 8229: 8228: 8226:on 2017-09-26. 8193: 8187: 8173:Suslin, Andrei 8165: 8159: 8149: 8104: 8101: 8100: 8099: 8093: 8078: 8072: 8059: 8046: 8026:Mazza, Carlo; 8023: 8018: 8005: 8004: 8003: 7996: 7989: 7969: 7952: 7939: 7924: 7921: 7920: 7919: 7897: 7857: 7821: 7815: 7781: 7778: 7776: 7773: 7772: 7771: 7766: 7761: 7756: 7751: 7744: 7741: 7689: 7682:, the functor 7666: 7652: 7606: 7584: 7552: 7551: 7528: 7525: 7500: 7497: 7494: 7491: 7488: 7485: 7482: 7479: 7474: 7470: 7466: 7459: 7454: 7448: 7444: 7441: 7438: 7435: 7432: 7398: 7393: 7389: 7386: 7380: 7375: 7371: 7368: 7365: 7362: 7359: 7335: 7314: 7267: 7186: 7183: 7163: 7160: 7155: 7150: 7128: 7125: 7122: 7119: 7115: 7090: 7087: 7084: 7080: 7060: 7059: 7048: 7045: 7042: 7039: 7036: 7033: 7030: 7027: 7023: 7019: 7016: 7013: 7010: 7005: 7002: 6998: 6994: 6991: 6988: 6985: 6982: 6978: 6974: 6971: 6968: 6963: 6959: 6955: 6952: 6949: 6946: 6943: 6940: 6935: 6931: 6906: 6903: 6891: 6880: 6870: 6869: 6841: 6816: 6813: 6809: 6804: 6800: 6797: 6794: 6789: 6780: 6751: 6748: 6743: 6738: 6733: 6730: 6727: 6722: 6718: 6714: 6711: 6708: 6705: 6700: 6696: 6680: 6679: 6674: 6657: 6640: 6628: 6574: 6573: 6570: 6567: 6556: 6553: 6511:linear algebra 6485: 6482: 6469: 6449: 6446: 6443: 6435: 6431: 6418: 6415: 6402: 6399: 6396: 6393: 6373: 6370: 6367: 6363: 6342: 6339: 6336: 6332: 6319: 6316: 6314: 6311: 6310: 6309: 6298: 6295: 6292: 6289: 6286: 6283: 6280: 6277: 6274: 6271: 6268: 6265: 6262: 6259: 6256: 6253: 6246: 6241: 6238: 6232: 6229: 6222: 6216: 6213: 6210: 6207: 6204: 6201: 6198: 6194: 6190: 6187: 6184: 6181: 6178: 6175: 6172: 6169: 6166: 6163: 6160: 6157: 6154: 6151: 6148: 6142: 6139: 6134: 6102: 6099: 6096: 6093: 6090: 6068: 6065: 6059: 6056: 6033: 6030: 6027: 6024: 6021: 6018: 6015: 5995: 5992: 5989: 5986: 5962: 5959: 5956: 5953: 5929: 5926: 5923: 5920: 5916: 5912: 5909: 5906: 5903: 5900: 5891:. We will set 5880: 5877: 5874: 5871: 5868: 5865: 5860: 5855: 5842: 5841: 5827: 5824: 5821: 5818: 5814: 5809: 5806: 5803: 5800: 5797: 5794: 5791: 5788: 5785: 5780: 5775: 5770: 5767: 5763: 5747: 5744: 5731: 5728: 5725: 5722: 5719: 5716: 5713: 5710: 5707: 5704: 5701: 5698: 5695: 5666: 5661: 5639: 5636: 5633: 5630: 5627: 5624: 5608: 5605: 5587: 5586: 5575: 5572: 5569: 5561: 5557: 5553: 5548: 5544: 5539: 5534: 5531: 5528: 5525: 5522: 5519: 5516: 5509: 5505: 5501: 5497: 5493: 5489: 5485: 5480: 5475: 5472: 5469: 5466: 5463: 5449: 5448: 5437: 5434: 5431: 5428: 5425: 5420: 5415: 5410: 5407: 5404: 5377: 5374: 5371: 5351: 5346: 5343: 5340: 5337: 5334: 5329: 5324: 5320: 5304: 5301: 5288: 5285: 5282: 5279: 5276: 5256: 5253: 5250: 5247: 5242: 5238: 5225: 5222: 5206: 5203: 5200: 5197: 5194: 5168: 5165: 5162: 5159: 5156: 5151: 5147: 5094: 5091: 5088: 5085: 5082: 5057:smooth variety 5052: 5049: 5036: 5032: 5026: 5023: 4997: 4993: 4987: 4984: 4981: 4958: 4954: 4950: 4946: 4943: 4923: 4920: 4918: 4915: 4873: 4872: 4860: 4857: 4854: 4851: 4848: 4845: 4842: 4837: 4833: 4800: 4799: 4788: 4785: 4782: 4779: 4776: 4773: 4768: 4763: 4760: 4756: 4741: 4740: 4729: 4726: 4723: 4720: 4717: 4714: 4711: 4708: 4705: 4702: 4699: 4676: 4673: 4670: 4667: 4664: 4641: 4638: 4630: 4629: 4626: 4623: 4620: 4617: 4604: 4601: 4584: 4581: 4578: 4575: 4572: 4558: 4557: 4546: 4543: 4540: 4537: 4534: 4531: 4528: 4525: 4522: 4519: 4509: 4506: 4503: 4500: 4497: 4494: 4489: 4486: 4483: 4479: 4475: 4472: 4468: 4465: 4462: 4459: 4456: 4453: 4450: 4447: 4444: 4441: 4438: 4435: 4432: 4429: 4426: 4423: 4420: 4417: 4403: 4402: 4391: 4387: 4383: 4380: 4377: 4374: 4371: 4368: 4365: 4362: 4359: 4356: 4353: 4350: 4347: 4344: 4341: 4338: 4335: 4321: 4320: 4308: 4305: 4302: 4299: 4296: 4293: 4290: 4285: 4281: 4277: 4274: 4271: 4268: 4265: 4262: 4234: 4233: 4222: 4218: 4214: 4211: 4206: 4201: 4196: 4191: 4186: 4180: 4176: 4172: 4157: 4156: 4145: 4142: 4138: 4134: 4131: 4126: 4121: 4116: 4086: 4085: 4073: 4068: 4063: 4058: 4053: 4048: 4043: 4038: 4034: 4030: 4025: 4020: 4015: 4012: 4009: 4006: 4003: 3999: 3996: 3993: 3990: 3985: 3980: 3975: 3972: 3969: 3938: 3931: 3925: 3918: 3912: 3905: 3898: 3891: 3883: 3878: 3877: 3863: 3859: 3853: 3848: 3844: 3840: 3835: 3831: 3825: 3820: 3816: 3812: 3807: 3803: 3799: 3794: 3790: 3785: 3782: 3777: 3773: 3769: 3764: 3760: 3756: 3753: 3750: 3745: 3741: 3737: 3732: 3728: 3724: 3721: 3718: 3713: 3709: 3705: 3700: 3696: 3692: 3689: 3686: 3681: 3677: 3673: 3668: 3664: 3660: 3657: 3652: 3648: 3644: 3639: 3635: 3618: 3611: 3605: 3598: 3587: 3580: 3573: 3562: 3555: 3548: 3541: 3534: 3527: 3520: 3513: 3506: 3499: 3492: 3486: 3485: 3474: 3471: 3468: 3465: 3462: 3459: 3456: 3453: 3450: 3447: 3444: 3441: 3438: 3435: 3432: 3429: 3426: 3421: 3417: 3406: 3403: 3400: 3397: 3394: 3391: 3388: 3385: 3382: 3379: 3376: 3373: 3370: 3367: 3364: 3361: 3358: 3353: 3349: 3334: 3333: 3322: 3319: 3316: 3311: 3306: 3302: 3298: 3295: 3290: 3285: 3281: 3277: 3274: 3271: 3268: 3265: 3262: 3259: 3256: 3253: 3250: 3247: 3244: 3241: 3238: 3235: 3232: 3229: 3226: 3223: 3220: 3217: 3203:tensor product 3199: 3198: 3187: 3183: 3179: 3176: 3173: 3170: 3166: 3162: 3159: 3156: 3152: 3147: 3143: 3140: 3137: 3134: 3131: 3128: 3125: 3122: 3119: 3116: 3113: 3110: 3107: 3104: 3101: 3098: 3058: 3055: 3054: 3040: 3035: 3032: 3029: 3026: 3021: 3017: 3013: 3010: 3007: 3004: 3001: 2998: 2996: 2993: 2992: 2989: 2984: 2980: 2976: 2973: 2970: 2967: 2964: 2961: 2958: 2955: 2952: 2950: 2947: 2946: 2943: 2940: 2937: 2934: 2928: 2925: 2922: 2918: 2914: 2911: 2908: 2904: 2901: 2899: 2896: 2893: 2890: 2887: 2884: 2883: 2881: 2876: 2873: 2836: 2835: 2824: 2821: 2818: 2815: 2812: 2809: 2806: 2803: 2800: 2797: 2794: 2790: 2786: 2783: 2780: 2777: 2774: 2771: 2768: 2765: 2762: 2759: 2756: 2753: 2750: 2747: 2744: 2741: 2738: 2735: 2732: 2729: 2726: 2723: 2713: 2702: 2699: 2696: 2693: 2690: 2687: 2684: 2674: 2671: 2668: 2665: 2662: 2659: 2656: 2653: 2650: 2647: 2644: 2641: 2638: 2635: 2632: 2629: 2626: 2623: 2620: 2617: 2614: 2610: 2606: 2603: 2600: 2597: 2592: 2588: 2583: 2579: 2576: 2546: 2545: 2533: 2530: 2527: 2524: 2521: 2518: 2515: 2512: 2509: 2506: 2503: 2500: 2497: 2494: 2491: 2488: 2485: 2480: 2476: 2452: 2449: 2446: 2443: 2440: 2424: 2417: 2416: 2415: 2404: 2400: 2395: 2391: 2388: 2385: 2381: 2377: 2373: 2369: 2366: 2363: 2359: 2354: 2348: 2344: 2340: 2337: 2334: 2331: 2328: 2325: 2320: 2316: 2312: 2309: 2306: 2303: 2300: 2297: 2292: 2288: 2284: 2281: 2278: 2275: 2272: 2269: 2266: 2263: 2260: 2257: 2190: 2187: 2184: 2181: 2178: 2158: 2155: 2152: 2149: 2146: 2143: 2132: 2131: 2118: 2111: 2107: 2103: 2100: 2097: 2096: 2093: 2090: 2087: 2084: 2083: 2080: 2077: 2074: 2071: 2068: 2065: 2062: 2059: 2056: 2053: 2050: 2047: 2046: 2044: 2039: 2036: 2013: 2010: 2007: 2004: 2001: 1981: 1978: 1975: 1972: 1967: 1963: 1939: 1936: 1933: 1930: 1927: 1907: 1904: 1901: 1898: 1895: 1892: 1878: 1877: 1866: 1863: 1860: 1857: 1854: 1851: 1848: 1843: 1840: 1837: 1833: 1829: 1825: 1821: 1818: 1815: 1810: 1805: 1802: 1798: 1794: 1791: 1788: 1785: 1780: 1775: 1772: 1768: 1763: 1757: 1754: 1751: 1747: 1743: 1740: 1737: 1734: 1711: 1708: 1705: 1702: 1699: 1696: 1693: 1688: 1684: 1680: 1677: 1657: 1654: 1651: 1648: 1645: 1642: 1637: 1633: 1629: 1626: 1606: 1603: 1600: 1597: 1594: 1570: 1567: 1564: 1559: 1555: 1543: 1542: 1531: 1528: 1525: 1522: 1517: 1513: 1509: 1504: 1501: 1496: 1492: 1487: 1481: 1477: 1473: 1470: 1467: 1464: 1461: 1458: 1455: 1452: 1449: 1446: 1441: 1437: 1400: 1396: 1393: 1382: 1381: 1370: 1365: 1361: 1357: 1354: 1351: 1346: 1342: 1337: 1332: 1328: 1322: 1318: 1314: 1311: 1276: 1273: 1270: 1267: 1264: 1241: 1238: 1235: 1211: 1208: 1205: 1185: 1182: 1179: 1151: 1148: 1145: 1142: 1139: 1127: 1120: 1118:is any field. 1103: 1100: 1097: 1094: 1091: 1075: 1072: 1056: 1055: 1052: 1025: 1022: 1008: 985: 982: 979: 975: 952: 948: 924: 917: 912: 906: 885: 865: 861: 857: 852: 848: 842: 839: 836: 816: 813: 810: 799: 798: 784: 781: 777: 774: 771: 768: 764: 760: 755: 752: 747: 742: 736: 732: 727: 724: 720: 717: 712: 697: 696: 685: 680: 675: 670: 665: 660: 655: 651: 647: 643: 625: 624: 611: 608: 605: 601: 597: 590: 585: 579: 575: 569: 566: 561: 557: 552: 548: 532:consisting of 530: 529: 517: 511: 507: 503: 500: 497: 494: 491: 486: 482: 478: 475: 472: 466: 463: 459: 456: 453: 450: 446: 442: 437: 434: 429: 424: 418: 414: 409: 406: 402: 399: 394: 390: 385: 382: 379: 375: 371: 364: 359: 353: 349: 343: 340: 335: 331: 326: 322: 317: 298:Pierre Deligne 285: 282: 279: 259: 256: 253: 250: 247: 244: 241: 221: 218: 215: 212: 209: 206: 203: 176:correspondence 163: 160: 157: 154: 151: 131: 111: 108: 105: 102: 99: 96: 93: 45:(or sometimes 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 8338: 8327: 8324: 8322: 8319: 8317: 8314: 8313: 8311: 8301: 8296: 8292: 8291: 8287: 8283: 8280: 8278: 8261: 8257: 8253: 8236: 8235: 8231: 8222: 8218: 8214: 8210: 8206: 8199: 8194: 8190: 8184: 8180: 8179: 8174: 8170: 8166: 8164: 8160: 8155: 8150: 8147: 8143: 8139: 8135: 8131: 8127: 8123: 8119: 8112: 8107: 8106: 8102: 8096: 8090: 8086: 8085: 8079: 8075: 8069: 8065: 8064:Mixed Motives 8060: 8057: 8053: 8049: 8043: 8039: 8035: 8034: 8029: 8024: 8021: 8015: 8011: 8006: 8001: 7997: 7994: 7990: 7987: 7983: 7982: 7980: 7976: 7972: 7966: 7962: 7958: 7953: 7950: 7946: 7942: 7936: 7932: 7927: 7926: 7922: 7916: 7911: 7907: 7903: 7898: 7894:on 2022-01-10 7890: 7886: 7882: 7878: 7874: 7870: 7863: 7858: 7854: 7850: 7846: 7842: 7838: 7834: 7827: 7822: 7819: 7816: 7812: 7808: 7803: 7798: 7794: 7793: 7788: 7784: 7783: 7779: 7774: 7770: 7767: 7765: 7762: 7760: 7757: 7755: 7752: 7750: 7747: 7746: 7742: 7740: 7738: 7734: 7730: 7726: 7722: 7718: 7714: 7710: 7705: 7703: 7700: 7696: 7692: 7685: 7681: 7655: 7648: 7644: 7640: 7636: 7632: 7628: 7624: 7619: 7573: 7572:Artin motives 7569: 7568:Galois theory 7565: 7561: 7557: 7550: 7546: 7542: 7538: 7537: 7536: 7534: 7526: 7524: 7522: 7518: 7514: 7492: 7486: 7483: 7477: 7472: 7468: 7457: 7442: 7436: 7433: 7430: 7422: 7417: 7415: 7391: 7387: 7369: 7363: 7360: 7357: 7350: 7312: 7304: 7300: 7296: 7291: 7289: 7285: 7281: 7279: 7275: 7271: 7263: 7259: 7255: 7251: 7247: 7243: 7239: 7235: 7231: 7227: 7223: 7219: 7215: 7211: 7206: 7204: 7200: 7194: 7192: 7184: 7182: 7180: 7176: 7161: 7153: 7126: 7120: 7104: 7085: 7069: 7065: 7046: 7037: 7028: 7017: 7014: 7008: 7003: 7000: 6996: 6992: 6983: 6972: 6969: 6961: 6957: 6953: 6947: 6944: 6941: 6933: 6929: 6921: 6920: 6919: 6917: 6913: 6912: 6904: 6902: 6899: 6897: 6890: 6886: 6879: 6875: 6867: 6866: 6865: 6863: 6858: 6856: 6830: 6811: 6807: 6798: 6795: 6787: 6778: 6769: 6765: 6749: 6741: 6731: 6728: 6720: 6716: 6712: 6706: 6698: 6694: 6685: 6678: 6675: 6672: 6668: 6664: 6662: 6658: 6655: 6629: 6626: 6622: 6618: 6617: 6616: 6613: 6609: 6604: 6602: 6598: 6594: 6590: 6588: 6583: 6579: 6571: 6568: 6566: 6565: 6564: 6562: 6554: 6552: 6550: 6546: 6542: 6538: 6535: 6531: 6527: 6522: 6520: 6516: 6512: 6508: 6504: 6500: 6495: 6491: 6483: 6481: 6467: 6444: 6433: 6416: 6414: 6397: 6391: 6368: 6337: 6317: 6312: 6290: 6287: 6284: 6278: 6275: 6269: 6266: 6263: 6257: 6251: 6244: 6239: 6236: 6220: 6214: 6211: 6208: 6205: 6202: 6199: 6196: 6188: 6179: 6176: 6173: 6167: 6161: 6158: 6155: 6146: 6132: 6124: 6123: 6122: 6097: 6094: 6091: 6066: 6063: 6031: 6025: 6019: 6016: 6013: 5990: 5984: 5957: 5951: 5943: 5924: 5921: 5910: 5904: 5898: 5875: 5869: 5866: 5858: 5822: 5819: 5812: 5801: 5795: 5792: 5778: 5753: 5752: 5751: 5745: 5743: 5726: 5723: 5720: 5714: 5708: 5702: 5696: 5684: 5682: 5664: 5637: 5631: 5628: 5625: 5592: 5570: 5559: 5555: 5551: 5546: 5542: 5537: 5529: 5523: 5517: 5507: 5503: 5499: 5495: 5491: 5487: 5483: 5478: 5470: 5467: 5464: 5454: 5453: 5452: 5432: 5418: 5408: 5405: 5395: 5394: 5393: 5391: 5372: 5322: 5318: 5310: 5302: 5300: 5286: 5280: 5277: 5274: 5254: 5251: 5248: 5245: 5240: 5223: 5221: 5182: 5163: 5160: 5157: 5149: 5145: 5116: 5092: 5089: 5086: 5083: 5080: 5072: 5065: 5058: 5050: 5048: 5034: 5030: 4995: 4991: 4952: 4944: 4941: 4921: 4916: 4914: 4910: 4908: 4904: 4900: 4896: 4891: 4889: 4888: 4882: 4878: 4852: 4846: 4843: 4835: 4831: 4823: 4822: 4821: 4820: 4816: 4812: 4807: 4805: 4783: 4780: 4777: 4771: 4766: 4761: 4758: 4754: 4746: 4745: 4744: 4724: 4718: 4715: 4706: 4700: 4697: 4690: 4689: 4688: 4671: 4665: 4662: 4655: 4651: 4650:mixed motives 4647: 4640:Mixed motives 4639: 4637: 4635: 4627: 4624: 4621: 4618: 4615: 4614: 4613: 4610: 4602: 4600: 4598: 4579: 4573: 4570: 4563:As intended, 4561: 4544: 4541: 4538: 4535: 4532: 4529: 4526: 4523: 4520: 4517: 4504: 4501: 4498: 4492: 4487: 4484: 4481: 4477: 4473: 4470: 4466: 4460: 4457: 4454: 4451: 4448: 4436: 4433: 4430: 4427: 4424: 4418: 4415: 4408: 4407: 4406: 4381: 4378: 4375: 4372: 4369: 4366: 4363: 4360: 4357: 4351: 4345: 4342: 4339: 4336: 4326: 4325: 4324: 4303: 4294: 4288: 4283: 4279: 4275: 4269: 4263: 4260: 4253: 4252: 4251: 4249: 4245: 4241: 4240: 4220: 4216: 4212: 4209: 4204: 4194: 4189: 4178: 4174: 4162: 4161: 4160: 4159:holds, since 4143: 4140: 4132: 4124: 4107: 4106: 4105: 4103: 4099: 4095: 4092:, called the 4091: 4066: 4056: 4051: 4036: 4032: 4028: 4023: 4013: 4010: 4007: 4004: 4001: 3997: 3991: 3988: 3983: 3970: 3967: 3960: 3959: 3958: 3956: 3952: 3948: 3944: 3936: 3932: 3930: 3928: 3921: 3911: 3904: 3897: 3890: 3886: 3861: 3857: 3851: 3846: 3842: 3838: 3833: 3829: 3823: 3818: 3814: 3810: 3805: 3801: 3797: 3792: 3788: 3783: 3775: 3771: 3767: 3762: 3758: 3751: 3743: 3739: 3735: 3730: 3726: 3719: 3711: 3707: 3703: 3698: 3694: 3687: 3679: 3675: 3671: 3666: 3662: 3655: 3650: 3646: 3642: 3637: 3633: 3625: 3624: 3623: 3621: 3614: 3604: 3597: 3593: 3586: 3579: 3572: 3568: 3561: 3554: 3547: 3540: 3533: 3526: 3519: 3512: 3505: 3498: 3491: 3472: 3469: 3466: 3463: 3454: 3451: 3448: 3442: 3436: 3433: 3430: 3424: 3419: 3415: 3404: 3401: 3398: 3395: 3386: 3383: 3380: 3374: 3368: 3365: 3362: 3356: 3351: 3347: 3339: 3338: 3337: 3320: 3314: 3309: 3304: 3300: 3296: 3293: 3288: 3283: 3279: 3275: 3272: 3269: 3266: 3260: 3254: 3251: 3245: 3236: 3230: 3227: 3221: 3208: 3207: 3206: 3204: 3185: 3181: 3177: 3174: 3171: 3168: 3164: 3160: 3157: 3154: 3150: 3145: 3141: 3135: 3132: 3126: 3117: 3111: 3108: 3102: 3089: 3088: 3087: 3085: 3081: 3076: 3074: 3070: 3066: 3061: 3033: 3030: 3027: 3024: 3019: 3011: 3005: 2994: 2982: 2974: 2971: 2965: 2959: 2948: 2938: 2932: 2894: 2888: 2885: 2879: 2874: 2871: 2864: 2863: 2862: 2859: 2857: 2853: 2849: 2845: 2841: 2822: 2816: 2813: 2810: 2807: 2804: 2801: 2798: 2795: 2792: 2784: 2781: 2778: 2775: 2772: 2766: 2757: 2754: 2751: 2745: 2739: 2736: 2733: 2724: 2721: 2714: 2700: 2694: 2691: 2688: 2685: 2682: 2669: 2663: 2660: 2657: 2651: 2648: 2645: 2642: 2639: 2633: 2627: 2624: 2621: 2612: 2608: 2601: 2595: 2590: 2586: 2581: 2577: 2574: 2567: 2566: 2565: 2563: 2559: 2555: 2551: 2525: 2519: 2516: 2510: 2507: 2504: 2501: 2498: 2495: 2489: 2483: 2478: 2474: 2466: 2465: 2464: 2447: 2441: 2438: 2430: 2422: 2418: 2402: 2398: 2393: 2389: 2386: 2383: 2379: 2375: 2371: 2367: 2364: 2361: 2357: 2352: 2346: 2342: 2332: 2329: 2326: 2318: 2314: 2310: 2304: 2301: 2298: 2290: 2286: 2282: 2276: 2273: 2270: 2264: 2261: 2258: 2255: 2248: 2247: 2246: 2244: 2239: 2235: 2231: 2227: 2222: 2217: 2213: 2209: 2205: 2185: 2179: 2176: 2169:the category 2156: 2150: 2144: 2141: 2109: 2098: 2091: 2085: 2075: 2069: 2066: 2057: 2051: 2048: 2042: 2037: 2034: 2027: 2026: 2025: 2011: 2005: 2002: 1999: 1979: 1976: 1973: 1970: 1965: 1951: 1934: 1928: 1925: 1905: 1899: 1893: 1890: 1881: 1864: 1858: 1855: 1852: 1846: 1841: 1838: 1835: 1831: 1827: 1823: 1816: 1808: 1803: 1800: 1796: 1792: 1786: 1778: 1773: 1770: 1766: 1761: 1755: 1752: 1749: 1745: 1741: 1738: 1735: 1732: 1725: 1724: 1723: 1709: 1703: 1700: 1697: 1691: 1686: 1682: 1678: 1675: 1652: 1649: 1646: 1640: 1635: 1631: 1627: 1624: 1604: 1601: 1598: 1595: 1592: 1584: 1565: 1557: 1553: 1529: 1523: 1520: 1515: 1511: 1502: 1499: 1494: 1490: 1485: 1479: 1475: 1471: 1465: 1462: 1459: 1450: 1444: 1439: 1435: 1427: 1426: 1425: 1423: 1419: 1415: 1394: 1391: 1368: 1363: 1359: 1355: 1352: 1349: 1344: 1340: 1335: 1330: 1326: 1320: 1316: 1312: 1309: 1302: 1301: 1300: 1298: 1294: 1290: 1271: 1265: 1262: 1253: 1239: 1236: 1233: 1225: 1209: 1206: 1203: 1183: 1177: 1169: 1165: 1146: 1140: 1137: 1125: 1121: 1119: 1117: 1098: 1092: 1089: 1081: 1073: 1071: 1069: 1063: 1061: 1053: 1050: 1049: 1048: 1046: 1042: 1040: 1035: 1031: 1023: 1021: 983: 980: 977: 973: 950: 946: 938: 922: 915: 904: 883: 855: 837: 834: 814: 811: 808: 775: 772: 769: 766: 762: 758: 753: 750: 745: 734: 730: 725: 722: 710: 702: 701: 700: 683: 678: 668: 663: 653: 645: 633: 632: 631: 630: 609: 606: 603: 599: 595: 588: 577: 573: 559: 555: 550: 546: 538: 537: 536: 535: 515: 509: 505: 501: 498: 495: 492: 489: 480: 476: 473: 470: 457: 454: 451: 448: 444: 440: 435: 432: 427: 416: 412: 407: 404: 392: 388: 383: 380: 377: 373: 369: 362: 351: 347: 333: 329: 324: 320: 315: 307: 306: 305: 303: 299: 283: 280: 277: 254: 251: 248: 245: 242: 216: 213: 210: 207: 204: 193: 189: 185: 181: 177: 161: 158: 155: 152: 149: 129: 106: 103: 100: 97: 94: 82: 80: 76: 72: 68: 64: 60: 56: 52: 48: 44: 40: 33: 19: 8302:at Wikiquote 8221:the original 8208: 8204: 8177: 8153: 8121: 8117: 8087:. Springer. 8083: 8063: 8032: 8012:, Springer, 8009: 7999: 7992: 7991:S. Kleiman: 7985: 7960: 7930: 7905: 7889:the original 7868: 7836: 7832: 7820:- J.S. Milne 7802:math/0604004 7791: 7721:Galois group 7713:Hodge theory 7706: 7701: 7687: 7683: 7679: 7650: 7646: 7622: 7620: 7571: 7563: 7559: 7555: 7553: 7548: 7544: 7540: 7532: 7530: 7520: 7517:Galois group 7418: 7349:full functor 7302: 7292: 7284:Conjecture D 7283: 7282: 7278:Hodge theory 7273: 7265: 7261: 7257: 7253: 7249: 7245: 7241: 7237: 7233: 7229: 7225: 7221: 7217: 7213: 7209: 7207: 7195: 7188: 7175: 7102: 7067: 7063: 7061: 6909: 6908: 6900: 6895: 6888: 6884: 6877: 6873: 6871: 6861: 6859: 6854: 6828: 6763: 6681: 6667:Galois group 6660: 6611: 6607: 6605: 6593:finite field 6586: 6575: 6560: 6558: 6548: 6544: 6536: 6525: 6523: 6518: 6515:vector space 6506: 6487: 6420: 6321: 6318:Tate motives 5941: 5843: 5749: 5685: 5588: 5450: 5306: 5227: 5180: 5114: 5054: 4925: 4911: 4903:Fields Medal 4894: 4892: 4884: 4880: 4876: 4874: 4814: 4808: 4801: 4742: 4649: 4645: 4643: 4633: 4631: 4606: 4562: 4559: 4404: 4322: 4247: 4243: 4237: 4235: 4158: 4101: 4097: 4093: 4089: 4087: 3954: 3946: 3940: 3934: 3923: 3916: 3909: 3902: 3895: 3888: 3881: 3879: 3616: 3609: 3602: 3595: 3591: 3584: 3577: 3570: 3566: 3559: 3552: 3545: 3538: 3531: 3524: 3517: 3510: 3503: 3496: 3489: 3487: 3335: 3200: 3079: 3077: 3072: 3068: 3064: 3059: 3056: 2860: 2855: 2851: 2847: 2843: 2839: 2837: 2561: 2557: 2553: 2549: 2547: 2426: 2420: 2237: 2233: 2229: 2225: 2215: 2211: 2207: 2203: 2133: 1952: 1882: 1879: 1582: 1544: 1421: 1417: 1413: 1383: 1296: 1292: 1288: 1254: 1163: 1129: 1123: 1115: 1077: 1064: 1057: 1038: 1027: 1024:Introduction 800: 698: 626: 531: 301: 179: 83: 49:, following 46: 42: 36: 8238:Musings on 8211:: 755–799. 8124:: 447–452, 7998:A. Scholl: 7737:Lie algebra 7554:which maps 6768:affine line 5942:Tate motive 4887:t-structure 4239:Tate motive 2241:). It is a 1224:Chow cycles 8310:Categories 7984:L. Breen: 7869:Astérisque 7775:References 7412:(rational 6519:cohomology 4879:back from 2554:idempotent 2134:Just like 1617:. For any 1060:CW-complex 8146:120799359 7915:1108.3787 7877:0303-1179 7845:0002-9920 7487:⁡ 7478:⁡ 7473:ℓ 7465:→ 7458:ℓ 7385:→ 7159:→ 7009:⁡ 6788:∗ 6766:with the 6732:× 6721:∗ 6713:≅ 6699:∗ 6595:, and in 6543:group of 6494:morphisms 6434:⊕ 6252:⁡ 6212:− 6203:− 6200:≥ 6147:⁡ 6017:⊗ 5922:− 5870:⁡ 5864:→ 5796:⁡ 5787:→ 5766:→ 5724:× 5703:⊗ 5552:− 5524:⊕ 5468:∩ 5427:→ 5409:× 5284:→ 5252:× 5246:⊂ 5237:Γ 5090:× 5084:⊂ 4772:⁡ 4767:∗ 4713:→ 4701:⁡ 4574:⁡ 4539:∘ 4521:∘ 4493:⁡ 4485:− 4474:∈ 4443:→ 4382:∈ 4370:⊢ 4346:⁡ 4340:∈ 4289:⁡ 4264:⁡ 4246: := 4210:× 4175:≅ 4141:⊕ 4057:× 4029:∈ 4014:× 4002:λ 3992:λ 3858:γ 3852:∗ 3843:π 3839:⋅ 3830:γ 3824:∗ 3815:π 3798:⊗ 3772:β 3752:⊗ 3740:β 3720:⊢ 3708:α 3688:⊗ 3676:α 3643:⊗ 3530: : ( 3495: : ( 3467:× 3461:→ 3452:× 3443:× 3434:× 3416:π 3399:× 3393:→ 3384:× 3375:× 3366:× 3348:π 3315:β 3310:∗ 3301:π 3297:⋅ 3294:α 3289:∗ 3280:π 3270:× 3255:β 3237:⊗ 3231:α 3178:β 3172:α 3158:∐ 3136:β 3118:⊕ 3112:α 3031:× 3025:⊂ 3016:Γ 3000:⟼ 2979:Δ 2954:⟼ 2933:⁡ 2903:⟶ 2889:⁡ 2814:∘ 2811:β 2799:α 2796:∘ 2782:⊢ 2758:β 2740:α 2725:⁡ 2695:α 2689:α 2686:∘ 2683:α 2664:⁡ 2658:∈ 2649:⊢ 2640:α 2634:∣ 2628:α 2596:⁡ 2578:⁡ 2520:⁡ 2484:⁡ 2442:⁡ 2387:∐ 2376:× 2365:∐ 2347:∗ 2339:↪ 2330:× 2319:∗ 2311:⊕ 2302:× 2291:∗ 2283:∈ 2277:β 2271:α 2262:β 2256:α 2232: := 2210: := 2180:⁡ 2145:⁡ 2106:Γ 2102:⟼ 2089:⟼ 2070:⁡ 2064:⟶ 2052:⁡ 2009:→ 1977:× 1971:⊆ 1962:Γ 1929:⁡ 1894:⁡ 1847:⁡ 1828:∈ 1817:β 1809:∗ 1797:π 1793:⋅ 1787:α 1779:∗ 1767:π 1756:∗ 1746:π 1739:α 1736:∘ 1733:β 1692:⁡ 1679:∈ 1676:β 1641:⁡ 1628:∈ 1625:α 1602:⊢ 1593:α 1521:× 1476:⨁ 1445:⁡ 1395:∈ 1356:⁡ 1317:∐ 1266:⁡ 1237:× 1207:× 1181:→ 1141:⁡ 1093:⁡ 947:ϕ 884:ϕ 851:¯ 838:⁡ 770:⁡ 627:over the 506:ϕ 499:ϕ 485:∞ 452:⁡ 281:− 159:⊢ 8217:17160833 7862:"Motifs" 7743:See also 7637:and the 6625:integers 6572:= + + 6490:category 5813:→ 5538:→ 5508:′ 5492:′ 5479:→ 5390:localize 5388:. If we 5137:-module 5071:integral 5069:call an 5055:Given a 4934:and let 4922:Notation 4885:motivic 4875:Getting 3945:to Chow( 3887: : 2850: : 1114:, where 1080:category 1054:= + + 876:-action 192:morphism 188:category 122:, where 61:such as 8126:Bibcode 8056:2242284 7979:1265518 7961:Motives 7949:2115000 7885:1144336 7853:2104916 7807:Bibcode 7274:weights 7203:Deligne 7101:is the 6898:) etc. 6006:denote 5977:we let 5064:variety 4811:Deligne 3622:. Then 3082:) is a 3057:where Δ 534:modules 184:integer 79:variety 43:motives 8215:  8185:  8144:  8091:  8070:  8054:  8044:  8016:  7977:  7967:  7947:  7937:  7883:  7875:  7851:  7843:  7711:is to 7697:of an 7062:where 6608:motive 6492:whose 5062:and a 4343:SmProj 3943:adjoin 3880:where 3583:) and 3523:) and 3336:where 2886:SmProj 2219:) and 2142:SmProj 2049:SmProj 1545:where 1043:, and 935:and a 178:, and 73:, and 51:French 47:motifs 8224:(PDF) 8213:S2CID 8201:(PDF) 8142:S2CID 8114:(PDF) 7923:Books 7910:arXiv 7892:(PDF) 7865:(PDF) 7829:(PDF) 7797:arXiv 7574:. By 7566:. In 7179:shift 6881:Betti 6831:over 6783:Betti 6569:= + 6534:curve 6530:genus 6384:, or 5117:from 4597:rigid 4595:is a 4096:, by 3544:) → ( 3509:) → ( 1416:from 1051:= + 629:rings 194:from 8183:ISBN 8089:ISBN 8068:ISBN 8042:ISBN 8014:ISBN 7965:ISBN 7935:ISBN 7873:ISSN 7841:ISSN 7727:and 7301:the 7293:The 7240:) ↣ 7232:) → 7189:The 7066:and 6868:= +. 6860:The 6599:for 6580:and 6113:for 5867:Spec 5793:Spec 5451:and 4571:Chow 4478:Corr 4280:Chow 4261:Chow 3615:and 3201:The 2661:Corr 2587:Chow 2552:and 2517:Corr 2475:Chow 2439:Corr 2177:Corr 2067:Corr 1926:Corr 1891:Corr 1832:Corr 1683:Corr 1668:and 1632:Corr 1436:Corr 1424:are 1291:and 1263:Corr 1138:Corr 1090:Chow 1078:The 978:cris 827:, a 767:cris 763:comp 735:comp 711:comp 604:cris 449:cris 445:comp 417:comp 393:comp 378:cris 8134:doi 8122:107 7739:.) 7731:on 7690:num 7653:num 7543:of 7484:Gal 7469:Rep 7325:of 7299:iff 7264:= ⨁ 6997:Hom 6887:), 6438:Pic 6245:eff 6221:Hom 6193:lim 6133:Hom 5618:eff 5129:to 5121:to 4901:'s 4755:Ext 4698:Var 4284:eff 3957:is 3410:and 3075:X. 2722:Mor 2591:eff 2479:eff 2431:of 2024:): 1420:to 1384:If 1353:dim 1226:on 965:of 896:on 835:Gal 300:in 232:to 182:an 37:In 8312:: 8207:. 8203:. 8171:; 8140:, 8132:, 8120:, 8116:, 8052:MR 8050:, 8036:, 7975:MR 7973:, 7945:MR 7943:, 7908:, 7904:, 7881:MR 7879:, 7867:, 7849:MR 7847:, 7837:51 7835:, 7831:, 7805:, 7280:. 7266:Gr 7260:: 7220:× 7216:⊂ 7162:pt 6993::= 6954::= 6892:DR 6603:. 6584:, 6521:. 6353:, 5742:. 5683:. 5613:gm 5299:. 5113:a 4895:DM 4890:. 4881:DM 4877:MM 4815:DM 4806:. 4636:. 4276::= 4242:, 4213:pt 4005::= 3971::= 3922:× 3915:→ 3908:× 3901:× 3894:× 3811::= 3601:× 3590:∈ 3576:× 3565:∈ 3551:, 3537:, 3516:, 3502:, 3261::= 3142::= 3067:× 3012::= 2966::= 2858:. 2854:⊢ 2842:, 2767::= 2613::= 2575:Ob 2560:⊢ 2496::= 2463:: 2265::= 2236:× 2228:⊗ 2214:∐ 2206:⊕ 1742::= 1472::= 1350::= 1252:. 1070:. 1036:, 1032:, 81:. 69:, 65:, 41:, 8265:) 8262:4 8258:/ 8254:1 8251:( 8247:Q 8209:9 8136:: 8128:: 8097:. 8076:. 7995:. 7988:. 7912:: 7809:: 7799:: 7702:G 7688:M 7684:H 7680:D 7665:Q 7651:M 7647:H 7605:Q 7583:Q 7564:k 7560:K 7556:K 7549:k 7545:k 7541:K 7533:k 7521:k 7499:) 7496:) 7493:k 7490:( 7481:( 7453:Q 7447:) 7443:k 7440:( 7437:M 7434:: 7431:H 7397:Q 7392:S 7388:H 7379:Q 7374:) 7370:k 7367:( 7364:M 7361:: 7358:H 7334:C 7313:k 7270:M 7268:n 7262:M 7258:n 7254:M 7250:H 7246:X 7244:( 7242:H 7238:X 7236:( 7234:H 7230:X 7228:( 7226:H 7222:X 7218:X 7214:π 7154:1 7149:P 7127:, 7124:) 7121:1 7118:( 7114:Z 7103:m 7089:) 7086:m 7083:( 7079:Z 7068:m 7064:n 7047:, 7044:) 7041:] 7038:n 7035:[ 7032:) 7029:m 7026:( 7022:Z 7018:, 7015:X 7012:( 7004:M 7001:D 6990:) 6987:) 6984:m 6981:( 6977:Z 6973:, 6970:X 6967:( 6962:n 6958:H 6951:) 6948:m 6945:, 6942:X 6939:( 6934:n 6930:H 6896:X 6894:( 6889:H 6885:X 6883:( 6878:H 6874:X 6855:l 6840:C 6829:X 6815:) 6812:n 6808:/ 6803:Z 6799:, 6796:X 6793:( 6779:H 6764:X 6750:, 6747:) 6742:1 6737:A 6729:X 6726:( 6717:H 6710:) 6707:X 6704:( 6695:H 6661:l 6639:C 6587:l 6561:X 6549:C 6545:C 6537:C 6507:X 6468:C 6448:) 6445:C 6442:( 6430:Z 6401:) 6398:n 6395:( 6392:A 6372:) 6369:n 6366:( 6362:Z 6341:) 6338:n 6335:( 6331:Q 6297:) 6294:) 6291:m 6288:+ 6285:k 6282:( 6279:B 6276:, 6273:) 6270:n 6267:+ 6264:k 6261:( 6258:A 6255:( 6240:m 6237:g 6231:M 6228:D 6215:m 6209:, 6206:n 6197:k 6189:= 6186:) 6183:) 6180:m 6177:, 6174:B 6171:( 6168:, 6165:) 6162:n 6159:, 6156:A 6153:( 6150:( 6141:M 6138:D 6119:n 6115:M 6101:) 6098:n 6095:, 6092:M 6089:( 6067:m 6064:g 6058:M 6055:D 6032:. 6029:) 6026:k 6023:( 6020:A 6014:M 5994:) 5991:k 5988:( 5985:M 5975:M 5961:) 5958:k 5955:( 5952:A 5928:] 5925:2 5919:[ 5915:L 5911:= 5908:) 5905:1 5902:( 5899:A 5879:) 5876:k 5873:( 5859:1 5854:P 5826:] 5823:1 5820:+ 5817:[ 5808:] 5805:) 5802:k 5799:( 5790:[ 5784:] 5779:1 5774:P 5769:[ 5762:L 5730:] 5727:Y 5721:X 5718:[ 5715:= 5712:] 5709:Y 5706:[ 5700:] 5697:X 5694:[ 5665:1 5660:A 5638:. 5635:) 5632:A 5629:, 5626:k 5623:( 5607:M 5604:D 5574:] 5571:X 5568:[ 5560:V 5556:j 5547:U 5543:j 5533:] 5530:V 5527:[ 5521:] 5518:U 5515:[ 5504:V 5500:j 5496:+ 5488:U 5484:j 5474:] 5471:V 5465:U 5462:[ 5436:] 5433:X 5430:[ 5424:] 5419:1 5414:A 5406:X 5403:[ 5376:] 5373:X 5370:[ 5350:) 5345:r 5342:o 5339:C 5336:m 5333:S 5328:( 5323:b 5319:K 5287:Y 5281:X 5278:: 5275:f 5255:Y 5249:X 5241:f 5205:r 5202:o 5199:C 5196:m 5193:S 5167:) 5164:Y 5161:, 5158:X 5155:( 5150:A 5146:C 5135:A 5131:Y 5127:X 5123:Y 5119:X 5111:Y 5107:X 5093:Y 5087:X 5081:W 5067:Y 5060:X 5035:k 5031:/ 5025:m 5022:S 5010:k 4996:k 4992:/ 4986:r 4983:a 4980:V 4957:Z 4953:, 4949:Q 4945:= 4942:A 4932:0 4928:k 4871:. 4859:) 4856:) 4853:k 4850:( 4847:M 4844:M 4841:( 4836:b 4832:D 4787:) 4784:? 4781:, 4778:1 4775:( 4762:M 4759:M 4728:) 4725:k 4722:( 4719:M 4716:M 4710:) 4707:k 4704:( 4675:) 4672:k 4669:( 4666:M 4663:M 4646:k 4583:) 4580:k 4577:( 4545:, 4542:f 4536:q 4533:= 4530:f 4527:= 4524:p 4518:f 4508:) 4505:Y 4502:, 4499:X 4496:( 4488:m 4482:n 4471:f 4467:, 4464:) 4461:n 4458:, 4455:q 4452:, 4449:Y 4446:( 4440:) 4437:m 4434:, 4431:p 4428:, 4425:X 4422:( 4419:: 4416:f 4390:) 4386:Z 4379:n 4376:, 4373:X 4367:X 4364:: 4361:p 4358:, 4355:) 4352:k 4349:( 4337:X 4334:( 4319:. 4307:] 4304:T 4301:[ 4298:) 4295:k 4292:( 4273:) 4270:k 4267:( 4248:L 4244:T 4221:. 4217:) 4205:1 4200:P 4195:, 4190:1 4185:P 4179:( 4171:1 4144:L 4137:1 4133:= 4130:] 4125:1 4120:P 4115:[ 4102:k 4098:1 4090:1 4084:. 4072:) 4067:1 4062:P 4052:1 4047:P 4042:( 4037:1 4033:A 4024:1 4019:P 4011:t 4008:p 3998:, 3995:) 3989:, 3984:1 3979:P 3974:( 3968:L 3955:L 3947:k 3937:) 3935:k 3926:i 3924:Y 3919:i 3917:X 3913:2 3910:Y 3906:1 3903:Y 3899:2 3896:X 3892:1 3889:X 3884:i 3882:π 3876:, 3862:2 3847:2 3834:1 3819:1 3806:2 3802:f 3793:1 3789:f 3784:, 3781:) 3776:2 3768:, 3763:2 3759:Y 3755:( 3749:) 3744:1 3736:, 3731:1 3727:Y 3723:( 3717:) 3712:2 3704:, 3699:2 3695:X 3691:( 3685:) 3680:1 3672:, 3667:1 3663:X 3659:( 3656:: 3651:2 3647:f 3638:1 3634:f 3619:2 3617:f 3612:1 3610:f 3606:2 3603:Y 3599:2 3596:X 3594:( 3592:A 3588:2 3585:γ 3581:1 3578:Y 3574:1 3571:X 3569:( 3567:A 3563:1 3560:γ 3556:2 3553:β 3549:2 3546:Y 3542:2 3539:α 3535:2 3532:X 3528:2 3525:f 3521:1 3518:β 3514:1 3511:Y 3507:1 3504:α 3500:1 3497:X 3493:1 3490:f 3473:. 3470:Y 3464:Y 3458:) 3455:Y 3449:X 3446:( 3440:) 3437:Y 3431:X 3428:( 3425:: 3420:Y 3405:, 3402:X 3396:X 3390:) 3387:Y 3381:X 3378:( 3372:) 3369:Y 3363:X 3360:( 3357:: 3352:X 3321:, 3318:) 3305:Y 3284:X 3276:, 3273:Y 3267:X 3264:( 3258:) 3252:, 3249:] 3246:Y 3243:[ 3240:( 3234:) 3228:, 3225:] 3222:X 3219:[ 3216:( 3186:, 3182:) 3175:+ 3169:, 3165:] 3161:Y 3155:X 3151:[ 3146:( 3139:) 3133:, 3130:] 3127:Y 3124:[ 3121:( 3115:) 3109:, 3106:] 3103:X 3100:[ 3097:( 3080:k 3069:X 3065:X 3060:X 3053:, 3034:Y 3028:X 3020:f 3009:] 3006:f 3003:[ 2995:f 2988:) 2983:X 2975:, 2972:X 2969:( 2963:] 2960:X 2957:[ 2949:X 2942:) 2939:k 2936:( 2927:f 2924:f 2921:e 2917:w 2913:o 2910:h 2907:C 2898:) 2895:k 2892:( 2880:{ 2875:: 2872:h 2856:X 2852:X 2848:α 2844:α 2840:X 2823:. 2820:} 2817:f 2808:= 2805:f 2802:= 2793:f 2789:| 2785:Y 2779:X 2776:: 2773:f 2770:{ 2764:) 2761:) 2755:, 2752:Y 2749:( 2746:, 2743:) 2737:, 2734:X 2731:( 2728:( 2701:. 2698:} 2692:= 2673:) 2670:k 2667:( 2655:) 2652:X 2646:X 2643:: 2637:( 2631:) 2625:, 2622:X 2619:( 2616:{ 2609:) 2605:) 2602:k 2599:( 2582:( 2562:X 2558:X 2550:X 2544:. 2532:) 2529:) 2526:k 2523:( 2514:( 2511:t 2508:i 2505:l 2502:p 2499:S 2493:) 2490:k 2487:( 2451:) 2448:k 2445:( 2423:) 2421:k 2403:. 2399:) 2394:) 2390:Y 2384:X 2380:( 2372:) 2368:Y 2362:X 2358:( 2353:( 2343:A 2336:) 2333:Y 2327:Y 2324:( 2315:A 2308:) 2305:X 2299:X 2296:( 2287:A 2280:) 2274:, 2268:( 2259:+ 2238:Y 2234:X 2230:Y 2226:X 2223:( 2216:Y 2212:X 2208:Y 2204:X 2189:) 2186:k 2183:( 2157:, 2154:) 2151:k 2148:( 2110:f 2099:f 2092:X 2086:X 2079:) 2076:k 2073:( 2061:) 2058:k 2055:( 2043:{ 2038:: 2035:F 2012:Y 2006:X 2003:: 2000:f 1980:Y 1974:X 1966:f 1938:) 1935:k 1932:( 1906:, 1903:) 1900:k 1897:( 1865:, 1862:) 1859:Z 1856:, 1853:X 1850:( 1842:s 1839:+ 1836:r 1824:) 1820:) 1814:( 1804:Z 1801:Y 1790:) 1784:( 1774:Y 1771:X 1762:( 1753:Z 1750:X 1710:, 1707:) 1704:Z 1701:, 1698:Y 1695:( 1687:s 1656:) 1653:Y 1650:, 1647:X 1644:( 1636:r 1605:Y 1599:X 1596:: 1583:k 1569:) 1566:X 1563:( 1558:k 1554:A 1530:, 1527:) 1524:Y 1516:i 1512:X 1508:( 1503:r 1500:+ 1495:i 1491:d 1486:A 1480:i 1469:) 1466:Y 1463:, 1460:X 1457:( 1454:) 1451:k 1448:( 1440:r 1422:Y 1418:X 1414:r 1399:Z 1392:r 1369:. 1364:i 1360:X 1345:i 1341:d 1336:, 1331:i 1327:X 1321:i 1313:= 1310:X 1297:X 1293:Y 1289:X 1275:) 1272:k 1269:( 1240:Y 1234:X 1210:Y 1204:X 1184:Y 1178:X 1164:k 1150:) 1147:k 1144:( 1126:) 1124:k 1116:k 1102:) 1099:k 1096:( 1039:l 1007:Q 984:p 981:, 974:M 951:p 923:, 916:f 911:A 905:M 864:) 860:Q 856:, 847:Q 841:( 815:F 812:, 809:W 783:R 780:D 776:, 773:p 759:, 754:B 751:, 746:f 741:A 731:, 726:B 723:, 719:R 716:D 684:, 679:p 674:Q 669:, 664:f 659:A 654:, 650:Q 646:, 642:Q 610:p 607:, 600:M 596:, 589:f 584:A 578:M 574:, 568:R 565:D 560:M 556:, 551:B 547:M 516:) 510:p 502:, 496:, 493:F 490:, 481:F 477:, 474:W 471:, 465:R 462:D 458:, 455:p 441:, 436:B 433:, 428:f 423:A 413:, 408:B 405:, 401:R 398:D 389:, 384:p 381:, 374:M 370:, 363:f 358:A 352:M 348:, 342:R 339:D 334:M 330:, 325:B 321:M 316:( 284:m 278:n 258:) 255:n 252:, 249:q 246:, 243:Y 240:( 220:) 217:m 214:, 211:p 208:, 205:X 202:( 180:m 162:X 156:X 153:: 150:p 130:X 110:) 107:m 104:, 101:p 98:, 95:X 92:( 34:. 20:)

Index

Motive (mathematics)
Motive (disambiguation)
algebraic geometry
French
Alexander Grothendieck
cohomology theories
singular cohomology
de Rham cohomology
etale cohomology
crystalline cohomology
variety
correspondence
integer
category
morphism
Pierre Deligne
modules
rings
"Frobenius" automorphism
Betti cohomology
de Rham cohomology
l-adic cohomology
crystalline cohomology
CW-complex
adequate equivalence relation
category
correspondences
Chow cycles
tensor products
preadditive category

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