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Stone–von Neumann theorem

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obtain a rigorous result, one must require that the operators satisfy the exponentiated form of the canonical commutation relations, known as the Weyl relations. The exponentiated operators are bounded and unitary. Although, as noted below, these relations are formally equivalent to the standard canonical commutation relations, this equivalence is not rigorous, because (again) of the unbounded nature of the operators. (There is also a discrete analog of the Weyl relations, which can hold in a finite-dimensional space, namely
2893: 6096: 2641: 4359:, one can then obtain "position" and "momentum" operators satisfying the canonical commutation relations. It is not hard to show that the exponentials of these operators satisfy the Weyl relations and that the exponentiated operators act irreducibly. The Stone–von Neumann theorem therefore applies and implies the existence of a unitary map from 3834: 602:
The idea of the Stone–von Neumann theorem is that any two irreducible representations of the canonical commutation relations are unitarily equivalent. Since, however, the operators involved are necessarily unbounded (as noted above), there are tricky domain issues that allow for counter-examples. To
2888:{\displaystyle {\begin{aligned}P&={\begin{bmatrix}0&1&0\\0&0&0\\0&0&0\end{bmatrix}},&Q&={\begin{bmatrix}0&0&0\\0&0&1\\0&0&0\end{bmatrix}},&z&={\begin{bmatrix}0&0&1\\0&0&0\\0&0&0\end{bmatrix}},\end{aligned}}} 957:
It is important to note that the preceding derivation is purely formal. Since the operators involved are unbounded, technical issues prevent application of the Baker–Campbell–Hausdorff formula without additional domain assumptions. Indeed, there exist operators satisfying the canonical commutation
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is multiplicative is a straightforward calculation. The hard part of the theorem is showing the uniqueness; this claim, nevertheless, follows easily from the Stone–von Neumann theorem as stated above. We will sketch below a proof of the corresponding Stone–von Neumann theorem for certain
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Then the Stone–von Neumann theorem is that, given the standard quantum mechanical scale (effectively, the value of ħ), every strongly continuous unitary representation is unitarily equivalent to the standard representation with position and momentum.
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formally differentiating at 0 shows that the two infinitesimal generators satisfy the above canonical commutation relation. This braiding formulation of the canonical commutation relations (CCR) for one-parameter unitary groups is called the
3359: 1797: 155: 4228: 4700: 2073: 4845: 1158: 3948: 2149: 3089: 2271: 939: 1371: 4669: 2485: 4050: 809: 2646: 2379: 160: 3505: 3244: 2326: 1968: 4305: 572:; the left-hand side is zero, the right-hand side is non-zero. Further analysis shows that any two self-adjoint operators satisfying the above commutation relation cannot be both 1590:: for example, if one is studying matrix representations or representations by operators on a Hilbert space, then the center of the matrix algebra or the operator algebra is the 1697: 1640:-structure on the matrix algebra is a choice of scalar matrix – a choice of scale. Given such a choice of scale, a central representation of the Heisenberg group is a map of 526: 4116: 3829:{\displaystyle \int _{\mathbf {R} ^{n}}e^{-ix\cdot p}e^{i(b\cdot x+hc)}\psi (x+ha)\ dx=e^{i(ha\cdot p+h(c-b\cdot a))}\int _{\mathbf {R} ^{n}}e^{-iy\cdot (p-b)}\psi (y)\ dy.} 5985: 5167: 624: 365: 116: 1598:
value (in physics terms, the Planck constant), and if this goes to zero, one gets a representation of the abelian group (in physics terms, this is the classical limit).
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It is a general fact that covariant representations are in one-to-one correspondence with *-representation of the corresponding crossed product. On the other hand, all
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By the orthogonality relations for characters of representations of finite groups this fact implies the corresponding Stone–von Neumann theorem for Heisenberg groups
1987: 409: 385: 5377: 1048: 3849: 5648: 460: 440: 343: 150: 2087: 5811: 702: 6135: 1854:, this is Stone's theorem characterizing one-parameter unitary groups. The theorem of Stone–von Neumann can also be restated using similar language. 6130: 5938: 5793: 1800: 619:
One would like to classify representations of the canonical commutation relation by two self-adjoint operators acting on separable Hilbert spaces,
5769: 2952: 2186: 1240: 4545: 964:). Nevertheless, in "good" cases, we expect that operators satisfying the canonical commutation relation will also satisfy the Weyl relations. 318:{\displaystyle {\begin{aligned}(x_{0})&=x_{0}\psi (x_{0})\\(x_{0})&=-i\hbar {\frac {\partial \psi }{\partial x}}(x_{0})\end{aligned}}} 5588: 5511: 3971: 708: 4832:{\displaystyle \chi (\mathrm {M} (a,b,c))={\begin{cases}|K|^{n}\,\omega (hc)&{\text{if }}a=b=0\\0&{\text{otherwise}}\end{cases}}} 6125: 5661: 5548: 5034:{\displaystyle {\frac {1}{\left|H_{n}(\mathbf {K} )\right|}}\sum _{g\in H_{n}(K)}|\chi (g)|^{2}={\frac {1}{|K|^{2n+1}}}|K|^{2n}|K|=1.} 3433: 5750: 5641: 2382: 1376: 608: 4230:
acting on holomorphic functions, satisfy the same commutation relations as the usual annihilation and creation operators, namely,
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In fact, using the Heisenberg group, one can reformulate the Stone von Neumann theorem in the language of representation theory.
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is a unitary operator because it is the composition of two operators which are easily seen to be unitary: the translation to the
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Concretely, by a central representation one means a representation such that the center of the Heisenberg group maps into the
627:, there is a one-to-one correspondence between self-adjoint operators and (strongly continuous) one-parameter unitary groups. 463: 44: 1908: 5816: 4233: 1673: 5872: 2331: 6120: 6099: 5821: 5806: 5634: 5836: 1229:, which presents quantum mechanical observables and dynamics in terms of infinite matrices, is unitarily equivalent to 6081: 5841: 469: 4055: 6035: 5959: 2925: 2276: 1386:
In terms of representation theory, the Stone–von Neumann theorem classifies certain unitary representations of the
968: 6076: 5141: 2594:{\displaystyle \mathrm {M} (a,b,c)={\begin{bmatrix}1&a&c\\0&1_{n}&b\\0&0&1\end{bmatrix}}.} 6140: 5892: 5136: 5123: 4334:
with respect to the inner product coming from the Gaussian measure. By taking appropriate linear combinations of
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If the center does not map to zero, one has a more interesting theory, particularly if one restricts oneself to
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to the Segal–Bargmann space that intertwines the usual annihilation and creation operators with the operators
6025: 4508: 412: 1594:. Thus the representation of the center of the Heisenberg group is determined by a scale value, called the 1572:
maps to zero, then one simply has a representation of the corresponding abelian group or algebra, which is
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that are square-integrable with respect to a Gaussian measure. Fock observed in 1920s that the operators
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degrees of freedom. Historically, this result was significant, because it was a key step in proving that
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Summers, Stephen J. (2001). "On the Stone–von Neumann Uniqueness Theorem and Its Ramifications." In
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Informally stated, with certain technical assumptions, every representation of the Heisenberg group
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for finite groups to the context of unitary representations of locally compact topological groups.
4532: 666: 32: 3354:{\displaystyle \alpha _{h}:\mathrm {M} (a,b,c)\to \mathrm {M} \left(-h^{-1}b,ha,c-a\cdot b\right)} 348: 99: 6030: 5897: 5467: 5412: 5355: 5308: 3843: 547: 55: 6010: 5584: 5544: 5507: 5430: 5404: 5375:(1930), "Linear Transformations in Hilbert Space. III. Operational Methods and Group Theory", 5347: 5300: 3553: 2628: 1691: 1569: 1222: 993:
which satisfy the Weyl relation on separable Hilbert spaces. The answer is the content of the
130: 123: 75: 48: 6015: 5933: 5902: 5882: 5867: 5862: 5857: 5694: 5495: 5459: 5420: 5394: 5339: 5325: 5292: 5278: 4504: 3839: 3527: 2447: 1387: 1226: 573: 394: 370: 63: 5598: 599:, so that, effectively, it is replaced by 1. We assume this normalization in what follows. 5877: 5831: 5779: 5774: 5745: 5626: 5594: 5580: 5114:
The Stone–von Neumann theorem admits numerous generalizations. Much of the early work of
2082: 1792:{\displaystyle f\mapsto {\hat {f}}(\gamma )=\int _{G}{\overline {\gamma (t)}}f(t)d\mu (t)} 1683: 1591: 1478: 1445:– and was the motivation for the introduction of the Heisenberg group in quantum physics. 577: 83: 5704: 17: 5390: 4503:
one can give a simple proof of the Stone–von Neumann theorem using simple properties of
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the corresponding Heisenberg algebra is a central extension of the abelian Lie algebra
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in Heisenberg's original CCRs. The Heisenberg group Lie algebra generators, e.g. for
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is unitary, this scalar multiple is uniquely determined and hence such an operator
3362: 3216: 1624:, so rather than simply thinking of the group algebra as an algebra over the field 1417: 1377:
Generalizations of Pauli matrices § Construction: The clock and shift matrices
531: 5579:, Grundlehren der Mathematischen Wissenschaften, vol. 220, Berlin, New York: 1634:. As the center of a matrix algebra or operator algebra is the scalar matrices, a 122:. In the Schrödinger representation quantum description of such a particle, the 4223:{\displaystyle a_{j}={\frac {\partial }{\partial z_{j}}},\qquad a_{j}^{*}=z_{j},} 5990: 5980: 5887: 5689: 4479: 3229:
is invariant under the action of the discrete subgroup of the Heisenberg group.
2443: 1656:, which is the formal way of saying that it sends the center to a chosen scale. 1421: 28: 5605: 5378:
Proceedings of the National Academy of Sciences of the United States of America
2068:{\displaystyle {\widehat {(s\cdot f)}}(\gamma )=\gamma (s){\hat {f}}(\gamma ).} 1490:
the discrete Heisenberg group is a central extension of the free abelian group
5923: 5763: 5759: 5755: 3144: 1602: 1438:(up to scale) non-trivial central strongly continuous unitary representation. 1217:
There is also a straightforward extension of the Stone–von Neumann theorem to
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Under the isomorphism given above, this action becomes the natural action of
1153:{\displaystyle W^{*}U(t)W=e^{itx}\quad {\text{and}}\quad W^{*}V(s)W=e^{isp},} 638:
be two self-adjoint operators satisfying the canonical commutation relation,
2467: 94: 5434: 3943:{\displaystyle (\alpha _{h})^{2}\mathrm {M} (a,b,c)=\mathrm {M} (-a,-b,c).} 3098:; and any irreducible representation which is not trivial on the center of 5399: 3838:
This theorem has the immediate implication that the Fourier transform is
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are unitarily equivalent. This means that there is a unitary operator
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all such pairs of one-parameter unitary groups are unitarily equivalent
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must range along the entire real line. The analog argument holds for
5463: 5343: 2144:{\displaystyle C^{*}\left({\hat {G}}\right)\rtimes _{\hat {\rho }}G} 1168:
are the explicit position and momentum operators from earlier. When
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is equivalent to the position operators and momentum operators on
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a prime. This field has the property that there is an embedding
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One representation of the Heisenberg group which is important in
1628:, one may think of it as an algebra over the commutative algebra 5630: 587:). For notational convenience, the nonvanishing square root of 39:
refers to any one of a number of different formulations of the
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over both sides of the latter equation and using the relation
5281:(1931), "Die Eindeutigkeit der Schrödingerschen Operatoren", 345:
of infinitely differentiable functions of compact support on
5450:(1932), "On one-parameter unitary groups in Hilbert Space", 3084:{\displaystyle \left\psi (x)=e^{i(b\cdot x+hc)}\psi (x+ha).} 2442:
are identical to the commutation relations that specify the
2337: 2266:{\displaystyle U(s)V(\gamma )U^{*}(s)=\gamma (s)V(\gamma ).} 934:{\displaystyle U(t)V(s)=e^{-ist}V(s)U(t)\qquad \forall s,t,} 4825: 5543:, Graduate Texts in Mathematics, vol. 267, Springer, 1366:{\displaystyle (x)=e^{itx}\psi (x),\qquad (x)=\psi (x+s).} 5118:
was directed at obtaining a formulation of the theory of
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on which the center acts nontrivially arise in this way.
4664:{\displaystyle \left(x)=\omega (b\cdot x+hc)\psi (x+ha).} 2416:
are unitarily equivalent. Specializing to the case where
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John von Neumann and the foundations of quantum physics
4045:{\displaystyle W_{1}U_{h}W_{1}^{*}=U_{h}\alpha ^{2}(g)} 701:.) A formal computation (using a special case of the 5606:"A Selective History of the Stone–von Neumann Theorem" 4507:
of representations. These properties follow from the
2820: 2742: 2664: 2523: 804:{\displaystyle e^{itQ}e^{isP}=e^{-ist}e^{isP}e^{itQ}.} 580:
shows the relation cannot be satisfied by elements of
4848: 4703: 4548: 4236: 4149: 4058: 3974: 3852: 3585: 3436: 3247: 2955: 2644: 2488: 2334: 2285: 2189: 2090: 1990: 1911: 1700: 1416:. Alternatively, that they are all equivalent to the 1243: 1051: 844: 711: 472: 448: 428: 397: 373: 351: 331: 158: 138: 102: 4511:
for characters of representations of finite groups.
118:, there are two important observables: position and 6049: 5973: 5952: 5911: 5850: 5792: 5738: 5673: 3509:Moreover, by irreducibility of the representations 2374:{\displaystyle {\mathcal {K}}\left(L^{2}(G)\right)} 2077:So a covariant representation corresponding to the 813:Conversely, given two one-parameter unitary groups 5986:Spectral theory of ordinary differential equations 5328:(1932), "Ueber Einen Satz Von Herrn M. H. Stone", 5079:Pairwise inequivalence of all the representations 5033: 4831: 4663: 4425:. In this section let us specialize to the field 4299: 4222: 4110: 4044: 3942: 3828: 3499: 3353: 3083: 2887: 2593: 2373: 2320: 2265: 2143: 2067: 1962: 1791: 1365: 1152: 933: 803: 611:in the finite Heisenberg group, discussed below.) 520: 454: 434: 403: 379: 359: 337: 317: 144: 110: 70:Representation issues of the commutation relations 3107:is unitarily equivalent to exactly one of these. 967:The problem thus becomes classifying two jointly 5168:Stone's theorem on one-parameter unitary groups 3500:{\displaystyle WU_{h}(g)W^{*}=U_{h}\alpha (g).} 5486:(1927), "Quantenmechanik und Gruppentheorie", 2434:The above canonical commutation relations for 1023:acting jointly irreducibly on a Hilbert space 5642: 5092:Actually, all irreducible representations of 8: 5385:(2), National Academy of Sciences: 172–175, 3579:in the definition of the Fourier transform, 665:, the corresponding unitary groups given by 5564:The Theory of Unitary Group Representations 5534: 5532: 5530: 5528: 5526: 5524: 5522: 5520: 4674: 4403:Representations of finite Heisenberg groups 3953: 3542: 3150:In particular, irreducible representations 2914: 1509:is a central extension of the free abelian 681:defined above, these are multiplication by 556:vanishes. This is apparent from taking the 5677: 5649: 5635: 5627: 5619:, pp. 135-152. Springer, Dordrecht, 2001, 5504:The Theory of Groups and Quantum Mechanics 1605:of the Heisenberg group over its field of 1545:In all cases, if one has a representation 591:may be absorbed into the normalization of 5577:Elements of the theory of representations 5424: 5398: 5291:, Springer Berlin / Heidelberg: 570–578, 5020: 5012: 5003: 4998: 4989: 4971: 4966: 4957: 4951: 4942: 4937: 4919: 4902: 4891: 4872: 4863: 4849: 4847: 4817: 4788: 4770: 4764: 4759: 4750: 4742: 4710: 4702: 4564: 4558: 4547: 4282: 4264: 4259: 4246: 4235: 4211: 4198: 4193: 4176: 4163: 4154: 4148: 4137:is the space of holomorphic functions on 4066: 4057: 4027: 4017: 4004: 3999: 3989: 3979: 3973: 3905: 3876: 3870: 3860: 3851: 3772: 3760: 3755: 3753: 3698: 3631: 3609: 3597: 3592: 3590: 3584: 3476: 3463: 3444: 3435: 3307: 3290: 3261: 3252: 3246: 3027: 2974: 2965: 2954: 2815: 2737: 2659: 2645: 2643: 2552: 2518: 2489: 2487: 2351: 2336: 2335: 2333: 2321:{\displaystyle C_{0}(G)\rtimes _{\rho }G} 2309: 2290: 2284: 2218: 2188: 2126: 2125: 2106: 2105: 2095: 2089: 2042: 2041: 1992: 1991: 1989: 1910: 1741: 1735: 1708: 1707: 1699: 1391: 1281: 1242: 1135: 1107: 1097: 1084: 1056: 1050: 876: 843: 786: 770: 751: 732: 716: 710: 471: 447: 427: 396: 372: 353: 352: 350: 330: 302: 275: 250: 218: 202: 182: 159: 157: 137: 104: 103: 101: 5939:Group algebra of a locally compact group 5566:, The University of Chicago Press, 1976. 3571:This means that, ignoring the factor of 3176:are unitarily equivalent if and only if 415:, which carries units of action (energy 5270: 5190: 3374:which is the identity on the center of 3167:which are non-trivial on the center of 534:observed that this commutation law was 512: 398: 374: 272: 5149:(for bosons and fermions respectively) 3383:. In particular, the representations 2426:yields the Stone–von Neumann theorem. 1390:. This is discussed in more detail in 5338:(3), Annals of Mathematics: 567–573, 1963:{\displaystyle (s\cdot f)(t)=f(t+s).} 1799:extends to a C*-isomorphism from the 1505:the discrete Heisenberg group modulo 1452:The continuous Heisenberg group is a 1424:) on a symplectic space of dimension 1180:-representation, it is evident that 958:relation but not the Weyl relations ( 7: 4421:is defined for any commutative ring 4300:{\displaystyle \left=\delta _{j,k}.} 3129:and multiplication by a function of 1233:'s wave mechanical formulation (see 93:For a single particle moving on the 1664:Reformulation via Fourier transform 1176:in this equation, so, then, in the 1001:. In other words, for any two such 4711: 4565: 4169: 4165: 3906: 3877: 3291: 3262: 2975: 2490: 916: 286: 278: 82:are represented mathematically by 25: 5612:. American Mathematical Society. 5541:Quantum Theory for Mathematicians 3233:Relation to the Fourier transform 1382:Representation theory formulation 835:satisfying the braiding relation 6136:Theorems in mathematical physics 6095: 6094: 6021:Topological quantum field theory 4873: 3756: 3593: 2466:a positive integer. This is the 2328:are unitarily equivalent to the 703:Baker–Campbell–Hausdorff formula 6131:Theorems in functional analysis 4489:. For finite Heisenberg group 4188: 1308: 1102: 1096: 915: 653:two real parameters. Introduce 521:{\displaystyle =xp-px=i\hbar .} 45:canonical commutation relations 5021: 5013: 4999: 4990: 4967: 4958: 4938: 4933: 4927: 4920: 4914: 4908: 4877: 4869: 4783: 4774: 4760: 4751: 4736: 4733: 4715: 4707: 4655: 4640: 4634: 4613: 4604: 4598: 4587: 4569: 4309:In 1961, Bargmann showed that 4111:{\displaystyle (x)=\psi (-x).} 4102: 4093: 4084: 4078: 4075: 4059: 4039: 4033: 3934: 3910: 3899: 3881: 3867: 3853: 3811: 3805: 3797: 3785: 3744: 3741: 3723: 3702: 3679: 3664: 3656: 3635: 3491: 3485: 3456: 3450: 3287: 3284: 3266: 3094:All these representations are 3075: 3060: 3052: 3031: 3017: 3011: 3000: 2997: 2979: 2971: 2920:For each non-zero real number 2512: 2494: 2363: 2357: 2302: 2296: 2257: 2251: 2245: 2239: 2230: 2224: 2211: 2205: 2199: 2193: 2131: 2111: 2059: 2053: 2047: 2038: 2032: 2023: 2017: 2007: 1995: 1954: 1942: 1933: 1927: 1924: 1912: 1786: 1780: 1771: 1765: 1753: 1747: 1725: 1719: 1713: 1704: 1441:This was later generalized by 1357: 1345: 1336: 1330: 1327: 1321: 1315: 1309: 1302: 1296: 1271: 1265: 1262: 1256: 1250: 1244: 1122: 1116: 1071: 1065: 1027:, there is a unitary operator 912: 906: 900: 894: 866: 860: 854: 848: 669:. (For the explicit operators 485: 473: 464:canonical commutation relation 391:real number—in quantum theory 308: 295: 256: 243: 240: 231: 224: 211: 188: 175: 172: 163: 1: 5817:Uniform boundedness principle 5604:Rosenberg, Jonathan (2004) 5506:, Dover Publications, 1950, 5334:, Second Series (in German), 4129:Example: Segal–Bargmann space 1674:locally compact abelian group 971:one-parameter unitary groups 530:Already in his classic book, 2936:acting on the Hilbert space 2482:square matrices of the form 2151:is a unitary representation 1757: 1692:Fourier–Plancherel transform 1392:the Heisenberg group section 960: 687:and pullback by translation 615:Uniqueness of representation 360:{\displaystyle \mathbb {R} } 111:{\displaystyle \mathbb {R} } 4325:is actually the adjoint of 4052:is the reflection operator 2277:irreducible representations 1184:is unitarily equivalent to 6157: 5960:Invariant subspace problem 4531:on the finite-dimensional 4522:define the representation 4395:. This unitary map is the 2926:irreducible representation 2895:and the central generator 2623:. However, this center is 1434:More formally, there is a 1374: 152:are respectively given by 6126:Mathematical quantization 6090: 5680: 5608:Contemporary Mathematics 5137:Oscillator representation 4684:, the character function 4123:Fourier inversion formula 1456:of the abelian Lie group 995:Stone–von Neumann theorem 621:up to unitary equivalence 37:Stone–von Neumann theorem 18:Stone-von Neumann theorem 5929:Spectrum of a C*-algebra 5575:Kirillov, A. A. (1976), 5122:developed originally by 4397:Segal–Bargmann transform 3158:of the Heisenberg group 2606:Note that the center of 609:clock and shift matrices 6026:Noncommutative geometry 5562:Mackey, G. W. (1976). 5245:‖ ‖ 5215:‖ ‖ 5120:induced representations 4509:orthogonality relations 3225:, so named because the 2396:. Therefore, all pairs 576:(in fact, a theorem of 413:reduced Planck constant 6082:Tomita–Takesaki theory 6057:Approximation property 6001:Calculus of variations 5494:(1927) pp. 1–46, 5488:Zeitschrift für Physik 5035: 4833: 4665: 4458:into the circle group 4301: 4224: 4112: 4046: 3944: 3830: 3501: 3355: 3096:unitarily inequivalent 3085: 2889: 2595: 2375: 2322: 2267: 2145: 2069: 1964: 1793: 1568:is an algebra and the 1367: 1206:, and the spectrum of 1154: 935: 805: 522: 456: 436: 405: 404:{\displaystyle \hbar } 381: 380:{\displaystyle \hbar } 361: 339: 319: 146: 112: 6077:Banach–Mazur distance 6040:Generalized functions 5452:Annals of Mathematics 5400:10.1073/pnas.16.2.172 5331:Annals of Mathematics 5284:Mathematische Annalen 5142:Wigner–Weyl transform 5036: 4834: 4680:For a fixed non-zero 4666: 4407:The Heisenberg group 4302: 4225: 4113: 4047: 3945: 3831: 3502: 3356: 3227:Jacobi theta function 3086: 2910:is not the identity. 2890: 2615:consists of matrices 2596: 2376: 2323: 2268: 2146: 2070: 1965: 1877:by right translation 1794: 1588:center of the algebra 1368: 1155: 936: 806: 538:for linear operators 536:impossible to satisfy 523: 457: 437: 406: 382: 362: 340: 320: 147: 113: 5822:Kakutani fixed-point 5807:Riesz representation 5173:Hille–Yosida theorem 5153:Segal–Bargmann space 5147:CCR and CAR algebras 4846: 4701: 4546: 4234: 4147: 4135:Segal–Bargmann space 4056: 3972: 3850: 3842:, also known as the 3583: 3434: 3245: 3222:theta representation 2953: 2642: 2486: 2332: 2283: 2187: 2088: 1988: 1909: 1698: 1241: 1049: 952:Weyl form of the CCR 842: 709: 470: 446: 426: 395: 371: 349: 329: 156: 136: 100: 58:. It is named after 6121:Functional analysis 6006:Functional calculus 5965:Mahler's conjecture 5944:Von Neumann algebra 5658:Functional analysis 5539:Hall, B.C. (2013), 5391:1930PNAS...16..172S 4678: —  4533:inner product space 4505:character functions 4269: 4203: 4121:From this fact the 4009: 3957: —  3546: —  3522:, such an operator 3417:such that, for any 3147:Heisenberg groups. 2918: —  1601:More formally, the 1235:Schrödinger picture 941:   ( 667:functional calculus 33:theoretical physics 6031:Riemann hypothesis 5730:Topological vector 5500:10.1007/BF02055756 5297:10.1007/BF01457956 5068:Irreducibility of 5031: 4918: 4829: 4824: 4676: 4661: 4297: 4255: 4220: 4189: 4108: 4042: 3995: 3955: 3940: 3844:Plancherel theorem 3826: 3544: 3518:, it follows that 3497: 3351: 3215:and the theory of 3081: 2916: 2885: 2883: 2872: 2794: 2716: 2591: 2582: 2371: 2318: 2263: 2141: 2065: 1960: 1789: 1363: 1150: 931: 801: 548:finite-dimensional 518: 452: 432: 401: 377: 357: 335: 315: 313: 142: 108: 6108: 6107: 6011:Integral operator 5788: 5787: 5590:978-0-387-07476-4 5512:978-1-163-18343-4 4987: 4887: 4885: 4820: 4791: 4514:For any non-zero 4183: 3816: 3684: 3554:Fourier transform 3237:For any non-zero 3199:in the center of 2629:identity operator 2383:compact operators 2134: 2114: 2050: 2014: 1848:is the real line 1760: 1716: 1583:representations. 1454:central extension 1100: 705:) readily yields 455:{\displaystyle p} 435:{\displaystyle x} 338:{\displaystyle V} 293: 145:{\displaystyle p} 131:momentum operator 124:position operator 76:quantum mechanics 16:(Redirected from 6148: 6141:John von Neumann 6098: 6097: 6016:Jones polynomial 5934:Operator algebra 5678: 5651: 5644: 5637: 5628: 5601: 5567: 5560: 5554: 5553: 5536: 5515: 5481: 5475: 5474: 5444: 5438: 5437: 5428: 5402: 5369: 5363: 5362: 5322: 5316: 5315: 5275: 5258: 5256: 5250: 5244: 5232: 5230: 5220: 5214: 5206: 5195: 5105: 5087: 5076: 5064:, particularly: 5063: 5040: 5038: 5037: 5032: 5024: 5016: 5011: 5010: 5002: 4993: 4988: 4986: 4985: 4984: 4970: 4961: 4952: 4947: 4946: 4941: 4923: 4917: 4907: 4906: 4886: 4884: 4880: 4876: 4868: 4867: 4850: 4842:It follows that 4838: 4836: 4835: 4830: 4828: 4827: 4821: 4818: 4792: 4789: 4769: 4768: 4763: 4754: 4714: 4696: 4687: 4683: 4679: 4670: 4668: 4667: 4662: 4597: 4593: 4568: 4563: 4562: 4541: 4530: 4521: 4517: 4502: 4488: 4477: 4463: 4453: 4449: 4445: 4441: 4424: 4420: 4394: 4393: 4392: 4378: 4369: 4358: 4357: 4356: 4342: 4333: 4324: 4323: 4322: 4306: 4304: 4303: 4298: 4293: 4292: 4274: 4270: 4268: 4263: 4251: 4250: 4229: 4227: 4226: 4221: 4216: 4215: 4202: 4197: 4184: 4182: 4181: 4180: 4164: 4159: 4158: 4142: 4125:easily follows. 4117: 4115: 4114: 4109: 4071: 4070: 4051: 4049: 4048: 4043: 4032: 4031: 4022: 4021: 4008: 4003: 3994: 3993: 3984: 3983: 3967: 3958: 3949: 3947: 3946: 3941: 3909: 3880: 3875: 3874: 3865: 3864: 3835: 3833: 3832: 3827: 3814: 3801: 3800: 3767: 3766: 3765: 3764: 3759: 3748: 3747: 3682: 3660: 3659: 3626: 3625: 3604: 3603: 3602: 3601: 3596: 3578: 3566: 3551: 3547: 3537: 3533: 3525: 3517: 3506: 3504: 3503: 3498: 3481: 3480: 3468: 3467: 3449: 3448: 3429: 3420: 3416: 3405: 3401: 3391: 3382: 3373: 3360: 3358: 3357: 3352: 3350: 3346: 3315: 3314: 3294: 3265: 3257: 3256: 3240: 3207: 3198: 3194: 3175: 3166: 3157: 3153: 3141: 3128: 3118: 3106: 3090: 3088: 3087: 3082: 3056: 3055: 3007: 3003: 2978: 2970: 2969: 2948: 2935: 2923: 2919: 2909: 2904:(0, 0, 1) = exp( 2894: 2892: 2891: 2886: 2884: 2877: 2876: 2799: 2798: 2721: 2720: 2637: 2622: 2614: 2600: 2598: 2597: 2592: 2587: 2586: 2557: 2556: 2493: 2481: 2465: 2461: 2448:Heisenberg group 2441: 2437: 2430:Heisenberg group 2425: 2415: 2395: 2380: 2378: 2377: 2372: 2370: 2366: 2356: 2355: 2341: 2340: 2327: 2325: 2324: 2319: 2314: 2313: 2295: 2294: 2272: 2270: 2269: 2264: 2223: 2222: 2182: 2176: 2165: 2161: 2150: 2148: 2147: 2142: 2137: 2136: 2135: 2127: 2120: 2116: 2115: 2107: 2100: 2099: 2080: 2074: 2072: 2071: 2066: 2052: 2051: 2043: 2016: 2015: 2010: 1993: 1983: 1975: 1969: 1967: 1966: 1961: 1904: 1892: 1888: 1884: 1880: 1876: 1864: 1860: 1853: 1847: 1843: 1837: 1825: 1813: 1809: 1801:group C*-algebra 1798: 1796: 1795: 1790: 1761: 1756: 1742: 1740: 1739: 1718: 1717: 1709: 1689: 1681: 1671: 1655: 1645: 1639: 1633: 1627: 1623: 1617: 1567: 1561: 1540: 1527: 1512: 1508: 1501: 1495: 1486: 1476: 1467: 1461: 1430: 1415: 1409: 1388:Heisenberg group 1372: 1370: 1369: 1364: 1292: 1291: 1227:matrix mechanics 1220: 1213: 1209: 1205: 1183: 1179: 1175: 1171: 1167: 1163: 1159: 1157: 1156: 1151: 1146: 1145: 1112: 1111: 1101: 1098: 1095: 1094: 1061: 1060: 1044: 1026: 1022: 1011: 992: 981: 944: 940: 938: 937: 932: 890: 889: 834: 823: 810: 808: 807: 802: 797: 796: 781: 780: 765: 764: 743: 742: 727: 726: 700: 686: 680: 674: 664: 658: 652: 648: 644: 637: 633: 598: 594: 590: 571: 555: 545: 541: 527: 525: 524: 519: 461: 459: 458: 453: 441: 439: 438: 433: 410: 408: 407: 402: 386: 384: 383: 378: 366: 364: 363: 358: 356: 344: 342: 341: 336: 324: 322: 321: 316: 314: 307: 306: 294: 292: 284: 276: 255: 254: 223: 222: 207: 206: 187: 186: 151: 149: 148: 143: 128: 117: 115: 114: 109: 107: 84:linear operators 64:John von Neumann 21: 6156: 6155: 6151: 6150: 6149: 6147: 6146: 6145: 6111: 6110: 6109: 6104: 6086: 6050:Advanced topics 6045: 5969: 5948: 5907: 5873:Hilbert–Schmidt 5846: 5837:Gelfand–Naimark 5784: 5734: 5669: 5655: 5591: 5581:Springer-Verlag 5574: 5571: 5570: 5561: 5557: 5551: 5538: 5537: 5518: 5482: 5478: 5464:10.2307/1968538 5446: 5445: 5441: 5371: 5370: 5366: 5344:10.2307/1968535 5326:von Neumann, J. 5324: 5323: 5319: 5279:von Neumann, J. 5277: 5276: 5272: 5267: 5262: 5261: 5246: 5240: 5234: 5226: 5216: 5210: 5208: 5197: 5196: 5192: 5187: 5182: 5132: 5112: 5110:Generalizations 5098: 5093: 5085: 5080: 5074: 5069: 5049: 5044: 4997: 4965: 4956: 4936: 4898: 4859: 4858: 4854: 4844: 4843: 4840: 4823: 4822: 4815: 4809: 4808: 4786: 4758: 4743: 4699: 4698: 4694: 4689: 4685: 4681: 4677: 4554: 4553: 4549: 4544: 4543: 4535: 4528: 4523: 4519: 4515: 4495: 4490: 4482: 4478:is finite with 4470: 4465: 4459: 4451: 4447: 4443: 4426: 4422: 4413: 4408: 4405: 4391: 4386: 4385: 4384: 4380: 4376: 4371: 4360: 4355: 4350: 4349: 4348: 4344: 4340: 4335: 4331: 4326: 4321: 4316: 4315: 4314: 4310: 4278: 4242: 4241: 4237: 4232: 4231: 4207: 4172: 4168: 4150: 4145: 4144: 4138: 4131: 4119: 4062: 4054: 4053: 4023: 4013: 3985: 3975: 3970: 3969: 3966: 3960: 3956: 3866: 3856: 3848: 3847: 3846:. Moreover, 3768: 3754: 3749: 3694: 3627: 3605: 3591: 3586: 3581: 3580: 3572: 3569: 3557: 3549: 3545: 3535: 3531: 3526:is unique (cf. 3523: 3515: 3510: 3472: 3459: 3440: 3432: 3431: 3427: 3422: 3418: 3407: 3403: 3398: 3393: 3389: 3384: 3380: 3375: 3371: 3366: 3303: 3299: 3295: 3248: 3243: 3242: 3238: 3235: 3205: 3200: 3196: 3177: 3173: 3168: 3164: 3159: 3155: 3151: 3139: 3134: 3124: 3116: 3111: 3104: 3099: 3092: 3023: 2961: 2960: 2956: 2951: 2950: 2937: 2933: 2928: 2921: 2917: 2896: 2882: 2881: 2871: 2870: 2865: 2860: 2854: 2853: 2848: 2843: 2837: 2836: 2831: 2826: 2816: 2808: 2803: 2793: 2792: 2787: 2782: 2776: 2775: 2770: 2765: 2759: 2758: 2753: 2748: 2738: 2730: 2725: 2715: 2714: 2709: 2704: 2698: 2697: 2692: 2687: 2681: 2680: 2675: 2670: 2660: 2652: 2640: 2639: 2632: 2616: 2612: 2607: 2581: 2580: 2575: 2570: 2564: 2563: 2558: 2548: 2546: 2540: 2539: 2534: 2529: 2519: 2484: 2483: 2471: 2463: 2460: 2450: 2446:of the general 2439: 2435: 2432: 2417: 2397: 2386: 2347: 2346: 2342: 2330: 2329: 2305: 2286: 2281: 2280: 2214: 2185: 2184: 2178: 2167: 2163: 2152: 2121: 2101: 2091: 2086: 2085: 2083:crossed product 2078: 1994: 1986: 1985: 1977: 1973: 1907: 1906: 1898: 1894: 1890: 1886: 1882: 1878: 1870: 1866: 1862: 1858: 1849: 1845: 1839: 1831: 1819: 1815: 1811: 1803: 1743: 1731: 1696: 1695: 1687: 1684:Pontryagin dual 1677: 1669: 1666: 1647: 1641: 1635: 1629: 1625: 1619: 1613: 1592:scalar matrices 1563: 1556: 1546: 1529: 1514: 1510: 1506: 1497: 1491: 1482: 1481:) by a copy of 1479:trivial bracket 1472: 1463: 1457: 1425: 1411: 1408: 1398: 1384: 1379: 1277: 1239: 1238: 1218: 1211: 1207: 1185: 1181: 1177: 1173: 1169: 1165: 1161: 1131: 1103: 1080: 1052: 1047: 1046: 1028: 1024: 1013: 1002: 983: 972: 947: 942: 872: 840: 839: 825: 814: 782: 766: 747: 728: 712: 707: 706: 688: 682: 676: 670: 660: 654: 650: 646: 639: 635: 631: 625:Stone's theorem 617: 596: 592: 588: 561: 551: 543: 539: 468: 467: 444: 443: 424: 423: 393: 392: 369: 368: 347: 346: 327: 326: 312: 311: 298: 285: 277: 259: 246: 228: 227: 214: 198: 191: 178: 154: 153: 134: 133: 126: 98: 97: 72: 23: 22: 15: 12: 11: 5: 6154: 6152: 6144: 6143: 6138: 6133: 6128: 6123: 6113: 6112: 6106: 6105: 6103: 6102: 6091: 6088: 6087: 6085: 6084: 6079: 6074: 6069: 6067:Choquet theory 6064: 6059: 6053: 6051: 6047: 6046: 6044: 6043: 6033: 6028: 6023: 6018: 6013: 6008: 6003: 5998: 5993: 5988: 5983: 5977: 5975: 5971: 5970: 5968: 5967: 5962: 5956: 5954: 5950: 5949: 5947: 5946: 5941: 5936: 5931: 5926: 5921: 5919:Banach algebra 5915: 5913: 5909: 5908: 5906: 5905: 5900: 5895: 5890: 5885: 5880: 5875: 5870: 5865: 5860: 5854: 5852: 5848: 5847: 5845: 5844: 5842:Banach–Alaoglu 5839: 5834: 5829: 5824: 5819: 5814: 5809: 5804: 5798: 5796: 5790: 5789: 5786: 5785: 5783: 5782: 5777: 5772: 5770:Locally convex 5767: 5753: 5748: 5742: 5740: 5736: 5735: 5733: 5732: 5727: 5722: 5717: 5712: 5707: 5702: 5697: 5692: 5687: 5681: 5675: 5671: 5670: 5656: 5654: 5653: 5646: 5639: 5631: 5625: 5624: 5613: 5602: 5589: 5569: 5568: 5555: 5550:978-1461471158 5549: 5516: 5476: 5458:(3): 643–648, 5439: 5364: 5317: 5269: 5268: 5266: 5263: 5260: 5259: 5189: 5188: 5186: 5183: 5181: 5180: 5175: 5170: 5165: 5160: 5155: 5150: 5144: 5139: 5133: 5131: 5128: 5111: 5108: 5096: 5090: 5089: 5083: 5077: 5072: 5047: 5030: 5027: 5023: 5019: 5015: 5009: 5006: 5001: 4996: 4992: 4983: 4980: 4977: 4974: 4969: 4964: 4960: 4955: 4950: 4945: 4940: 4935: 4932: 4929: 4926: 4922: 4916: 4913: 4910: 4905: 4901: 4897: 4894: 4890: 4883: 4879: 4875: 4871: 4866: 4862: 4857: 4853: 4826: 4816: 4814: 4811: 4810: 4807: 4804: 4801: 4798: 4795: 4787: 4785: 4782: 4779: 4776: 4773: 4767: 4762: 4757: 4753: 4749: 4748: 4746: 4741: 4738: 4735: 4732: 4729: 4726: 4723: 4720: 4717: 4713: 4709: 4706: 4692: 4672: 4660: 4657: 4654: 4651: 4648: 4645: 4642: 4639: 4636: 4633: 4630: 4627: 4624: 4621: 4618: 4615: 4612: 4609: 4606: 4603: 4600: 4596: 4592: 4589: 4586: 4583: 4580: 4577: 4574: 4571: 4567: 4561: 4557: 4552: 4526: 4493: 4468: 4456:additive group 4411: 4404: 4401: 4387: 4374: 4351: 4338: 4329: 4317: 4296: 4291: 4288: 4285: 4281: 4277: 4273: 4267: 4262: 4258: 4254: 4249: 4245: 4240: 4219: 4214: 4210: 4206: 4201: 4196: 4192: 4187: 4179: 4175: 4171: 4167: 4162: 4157: 4153: 4130: 4127: 4107: 4104: 4101: 4098: 4095: 4092: 4089: 4086: 4083: 4080: 4077: 4074: 4069: 4065: 4061: 4041: 4038: 4035: 4030: 4026: 4020: 4016: 4012: 4007: 4002: 3998: 3992: 3988: 3982: 3978: 3964: 3951: 3939: 3936: 3933: 3930: 3927: 3924: 3921: 3918: 3915: 3912: 3908: 3904: 3901: 3898: 3895: 3892: 3889: 3886: 3883: 3879: 3873: 3869: 3863: 3859: 3855: 3825: 3822: 3819: 3813: 3810: 3807: 3804: 3799: 3796: 3793: 3790: 3787: 3784: 3781: 3778: 3775: 3771: 3763: 3758: 3752: 3746: 3743: 3740: 3737: 3734: 3731: 3728: 3725: 3722: 3719: 3716: 3713: 3710: 3707: 3704: 3701: 3697: 3693: 3690: 3687: 3681: 3678: 3675: 3672: 3669: 3666: 3663: 3658: 3655: 3652: 3649: 3646: 3643: 3640: 3637: 3634: 3630: 3624: 3621: 3618: 3615: 3612: 3608: 3600: 3595: 3589: 3540: 3520:up to a scalar 3513: 3496: 3493: 3490: 3487: 3484: 3479: 3475: 3471: 3466: 3462: 3458: 3455: 3452: 3447: 3443: 3439: 3425: 3396: 3387: 3378: 3369: 3349: 3345: 3342: 3339: 3336: 3333: 3330: 3327: 3324: 3321: 3318: 3313: 3310: 3306: 3302: 3298: 3293: 3289: 3286: 3283: 3280: 3277: 3274: 3271: 3268: 3264: 3260: 3255: 3251: 3241:, the mapping 3234: 3231: 3203: 3171: 3162: 3137: 3131:absolute value 3114: 3102: 3080: 3077: 3074: 3071: 3068: 3065: 3062: 3059: 3054: 3051: 3048: 3045: 3042: 3039: 3036: 3033: 3030: 3026: 3022: 3019: 3016: 3013: 3010: 3006: 3002: 2999: 2996: 2993: 2990: 2987: 2984: 2981: 2977: 2973: 2968: 2964: 2959: 2931: 2912: 2880: 2875: 2869: 2866: 2864: 2861: 2859: 2856: 2855: 2852: 2849: 2847: 2844: 2842: 2839: 2838: 2835: 2832: 2830: 2827: 2825: 2822: 2821: 2819: 2814: 2811: 2809: 2807: 2804: 2802: 2797: 2791: 2788: 2786: 2783: 2781: 2778: 2777: 2774: 2771: 2769: 2766: 2764: 2761: 2760: 2757: 2754: 2752: 2749: 2747: 2744: 2743: 2741: 2736: 2733: 2731: 2729: 2726: 2724: 2719: 2713: 2710: 2708: 2705: 2703: 2700: 2699: 2696: 2693: 2691: 2688: 2686: 2683: 2682: 2679: 2676: 2674: 2671: 2669: 2666: 2665: 2663: 2658: 2655: 2653: 2651: 2648: 2647: 2610: 2590: 2585: 2579: 2576: 2574: 2571: 2569: 2566: 2565: 2562: 2559: 2555: 2551: 2547: 2545: 2542: 2541: 2538: 2535: 2533: 2530: 2528: 2525: 2524: 2522: 2517: 2514: 2511: 2508: 2505: 2502: 2499: 2496: 2492: 2454: 2431: 2428: 2369: 2365: 2362: 2359: 2354: 2350: 2345: 2339: 2317: 2312: 2308: 2304: 2301: 2298: 2293: 2289: 2262: 2259: 2256: 2253: 2250: 2247: 2244: 2241: 2238: 2235: 2232: 2229: 2226: 2221: 2217: 2213: 2210: 2207: 2204: 2201: 2198: 2195: 2192: 2140: 2133: 2130: 2124: 2119: 2113: 2110: 2104: 2098: 2094: 2064: 2061: 2058: 2055: 2049: 2046: 2040: 2037: 2034: 2031: 2028: 2025: 2022: 2019: 2013: 2009: 2006: 2003: 2000: 1997: 1959: 1956: 1953: 1950: 1947: 1944: 1941: 1938: 1935: 1932: 1929: 1926: 1923: 1920: 1917: 1914: 1896: 1868: 1817: 1788: 1785: 1782: 1779: 1776: 1773: 1770: 1767: 1764: 1759: 1755: 1752: 1749: 1746: 1738: 1734: 1730: 1727: 1724: 1721: 1715: 1712: 1706: 1703: 1665: 1662: 1574:Fourier theory 1550: 1543: 1542: 1503: 1488: 1469: 1402: 1383: 1380: 1362: 1359: 1356: 1353: 1350: 1347: 1344: 1341: 1338: 1335: 1332: 1329: 1326: 1323: 1320: 1317: 1314: 1311: 1307: 1304: 1301: 1298: 1295: 1290: 1287: 1284: 1280: 1276: 1273: 1270: 1267: 1264: 1261: 1258: 1255: 1252: 1249: 1246: 1149: 1144: 1141: 1138: 1134: 1130: 1127: 1124: 1121: 1118: 1115: 1110: 1106: 1093: 1090: 1087: 1083: 1079: 1076: 1073: 1070: 1067: 1064: 1059: 1055: 930: 927: 924: 921: 918: 914: 911: 908: 905: 902: 899: 896: 893: 888: 885: 882: 879: 875: 871: 868: 865: 862: 859: 856: 853: 850: 847: 837: 800: 795: 792: 789: 785: 779: 776: 773: 769: 763: 760: 757: 754: 750: 746: 741: 738: 735: 731: 725: 722: 719: 715: 616: 613: 585:normed algebra 550:spaces unless 517: 514: 511: 508: 505: 502: 499: 496: 493: 490: 487: 484: 481: 478: 475: 451: 431: 422:The operators 400: 387:to be a fixed 376: 355: 334: 325:on the domain 310: 305: 301: 297: 291: 288: 283: 280: 274: 271: 268: 265: 262: 260: 258: 253: 249: 245: 242: 239: 236: 233: 230: 229: 226: 221: 217: 213: 210: 205: 201: 197: 194: 192: 190: 185: 181: 177: 174: 171: 168: 165: 162: 161: 141: 106: 88:Hilbert spaces 71: 68: 60:Marshall Stone 24: 14: 13: 10: 9: 6: 4: 3: 2: 6153: 6142: 6139: 6137: 6134: 6132: 6129: 6127: 6124: 6122: 6119: 6118: 6116: 6101: 6093: 6092: 6089: 6083: 6080: 6078: 6075: 6073: 6072:Weak topology 6070: 6068: 6065: 6063: 6060: 6058: 6055: 6054: 6052: 6048: 6041: 6037: 6034: 6032: 6029: 6027: 6024: 6022: 6019: 6017: 6014: 6012: 6009: 6007: 6004: 6002: 5999: 5997: 5996:Index theorem 5994: 5992: 5989: 5987: 5984: 5982: 5979: 5978: 5976: 5972: 5966: 5963: 5961: 5958: 5957: 5955: 5953:Open problems 5951: 5945: 5942: 5940: 5937: 5935: 5932: 5930: 5927: 5925: 5922: 5920: 5917: 5916: 5914: 5910: 5904: 5901: 5899: 5896: 5894: 5891: 5889: 5886: 5884: 5881: 5879: 5876: 5874: 5871: 5869: 5866: 5864: 5861: 5859: 5856: 5855: 5853: 5849: 5843: 5840: 5838: 5835: 5833: 5830: 5828: 5825: 5823: 5820: 5818: 5815: 5813: 5810: 5808: 5805: 5803: 5800: 5799: 5797: 5795: 5791: 5781: 5778: 5776: 5773: 5771: 5768: 5765: 5761: 5757: 5754: 5752: 5749: 5747: 5744: 5743: 5741: 5737: 5731: 5728: 5726: 5723: 5721: 5718: 5716: 5713: 5711: 5708: 5706: 5703: 5701: 5698: 5696: 5693: 5691: 5688: 5686: 5683: 5682: 5679: 5676: 5672: 5667: 5663: 5659: 5652: 5647: 5645: 5640: 5638: 5633: 5632: 5629: 5622: 5618: 5614: 5611: 5607: 5603: 5600: 5596: 5592: 5586: 5582: 5578: 5573: 5572: 5565: 5559: 5556: 5552: 5546: 5542: 5535: 5533: 5531: 5529: 5527: 5525: 5523: 5521: 5517: 5513: 5509: 5505: 5501: 5497: 5493: 5489: 5485: 5480: 5477: 5473: 5469: 5465: 5461: 5457: 5453: 5449: 5443: 5440: 5436: 5432: 5427: 5422: 5418: 5414: 5410: 5406: 5401: 5396: 5392: 5388: 5384: 5380: 5379: 5374: 5368: 5365: 5361: 5357: 5353: 5349: 5345: 5341: 5337: 5333: 5332: 5327: 5321: 5318: 5314: 5310: 5306: 5302: 5298: 5294: 5290: 5286: 5285: 5280: 5274: 5271: 5264: 5254: 5249: 5243: 5238: 5229: 5224: 5219: 5213: 5205: 5201: 5194: 5191: 5184: 5179: 5176: 5174: 5171: 5169: 5166: 5164: 5161: 5159: 5158:Moyal product 5156: 5154: 5151: 5148: 5145: 5143: 5140: 5138: 5135: 5134: 5129: 5127: 5125: 5121: 5117: 5116:George Mackey 5109: 5107: 5103: 5099: 5086: 5078: 5075: 5067: 5066: 5065: 5061: 5058: 5054: 5050: 5041: 5028: 5025: 5017: 5007: 5004: 4994: 4981: 4978: 4975: 4972: 4962: 4953: 4948: 4943: 4930: 4924: 4911: 4903: 4899: 4895: 4892: 4888: 4881: 4864: 4860: 4855: 4851: 4839: 4812: 4805: 4802: 4799: 4796: 4793: 4780: 4777: 4771: 4765: 4755: 4744: 4739: 4730: 4727: 4724: 4721: 4718: 4704: 4697:is given by: 4695: 4671: 4658: 4652: 4649: 4646: 4643: 4637: 4631: 4628: 4625: 4622: 4619: 4616: 4610: 4607: 4601: 4594: 4590: 4584: 4581: 4578: 4575: 4572: 4559: 4555: 4550: 4539: 4534: 4529: 4512: 4510: 4506: 4500: 4496: 4486: 4481: 4475: 4471: 4464:. Note that 4462: 4457: 4440: 4437: 4433: 4429: 4418: 4414: 4402: 4400: 4398: 4390: 4383: 4377: 4367: 4363: 4354: 4347: 4341: 4332: 4320: 4313: 4307: 4294: 4289: 4286: 4283: 4279: 4275: 4271: 4265: 4260: 4256: 4252: 4247: 4243: 4238: 4217: 4212: 4208: 4204: 4199: 4194: 4190: 4185: 4177: 4173: 4160: 4155: 4151: 4141: 4136: 4128: 4126: 4124: 4118: 4105: 4099: 4096: 4090: 4087: 4081: 4072: 4067: 4063: 4036: 4028: 4024: 4018: 4014: 4010: 4005: 4000: 3996: 3990: 3986: 3980: 3976: 3963: 3959:The operator 3950: 3937: 3931: 3928: 3925: 3922: 3919: 3916: 3913: 3902: 3896: 3893: 3890: 3887: 3884: 3871: 3861: 3857: 3845: 3841: 3836: 3823: 3820: 3817: 3808: 3802: 3794: 3791: 3788: 3782: 3779: 3776: 3773: 3769: 3761: 3750: 3738: 3735: 3732: 3729: 3726: 3720: 3717: 3714: 3711: 3708: 3705: 3699: 3695: 3691: 3688: 3685: 3676: 3673: 3670: 3667: 3661: 3653: 3650: 3647: 3644: 3641: 3638: 3632: 3628: 3622: 3619: 3616: 3613: 3610: 3606: 3598: 3587: 3576: 3568: 3564: 3560: 3555: 3548:The operator 3539: 3529: 3528:Schur's lemma 3521: 3516: 3507: 3494: 3488: 3482: 3477: 3473: 3469: 3464: 3460: 3453: 3445: 3441: 3437: 3428: 3414: 3410: 3400: 3390: 3381: 3372: 3364: 3347: 3343: 3340: 3337: 3334: 3331: 3328: 3325: 3322: 3319: 3316: 3311: 3308: 3304: 3300: 3296: 3281: 3278: 3275: 3272: 3269: 3258: 3253: 3249: 3232: 3230: 3228: 3224: 3223: 3218: 3217:modular forms 3214: 3213:number theory 3209: 3206: 3192: 3188: 3184: 3180: 3174: 3165: 3148: 3146: 3140: 3132: 3127: 3122: 3117: 3108: 3105: 3097: 3091: 3078: 3072: 3069: 3066: 3063: 3057: 3049: 3046: 3043: 3040: 3037: 3034: 3028: 3024: 3020: 3014: 3008: 3004: 2994: 2991: 2988: 2985: 2982: 2966: 2962: 2957: 2946: 2942: 2941: 2934: 2927: 2911: 2907: 2903: 2899: 2878: 2873: 2867: 2862: 2857: 2850: 2845: 2840: 2833: 2828: 2823: 2817: 2812: 2810: 2805: 2800: 2795: 2789: 2784: 2779: 2772: 2767: 2762: 2755: 2750: 2745: 2739: 2734: 2732: 2727: 2722: 2717: 2711: 2706: 2701: 2694: 2689: 2684: 2677: 2672: 2667: 2661: 2656: 2654: 2649: 2635: 2630: 2626: 2620: 2613: 2604: 2601: 2588: 2583: 2577: 2572: 2567: 2560: 2553: 2549: 2543: 2536: 2531: 2526: 2520: 2515: 2509: 2506: 2503: 2500: 2497: 2479: 2475: 2469: 2458: 2453: 2449: 2445: 2429: 2427: 2424: 2420: 2413: 2409: 2405: 2401: 2393: 2389: 2384: 2367: 2360: 2352: 2348: 2343: 2315: 2310: 2306: 2299: 2291: 2287: 2278: 2273: 2260: 2254: 2248: 2242: 2236: 2233: 2227: 2219: 2215: 2208: 2202: 2196: 2190: 2181: 2174: 2170: 2159: 2155: 2138: 2128: 2122: 2117: 2108: 2102: 2096: 2092: 2084: 2075: 2062: 2056: 2044: 2035: 2029: 2026: 2020: 2011: 2004: 2001: 1998: 1981: 1970: 1957: 1951: 1948: 1945: 1939: 1936: 1930: 1921: 1918: 1915: 1902: 1874: 1855: 1852: 1842: 1838:is precisely 1835: 1829: 1823: 1807: 1802: 1783: 1777: 1774: 1768: 1762: 1750: 1744: 1736: 1732: 1728: 1722: 1710: 1701: 1693: 1685: 1680: 1675: 1663: 1661: 1657: 1654: 1650: 1644: 1638: 1632: 1622: 1618:, has center 1616: 1611: 1608: 1604: 1603:group algebra 1599: 1597: 1593: 1589: 1584: 1582: 1577: 1575: 1571: 1566: 1560: 1554: 1549: 1539: 1536: 1532: 1528:by a copy of 1525: 1522: 1518: 1504: 1500: 1496:by a copy of 1494: 1489: 1485: 1480: 1475: 1470: 1466: 1462:by a copy of 1460: 1455: 1451: 1450: 1449: 1446: 1444: 1443:Mackey theory 1439: 1437: 1432: 1429: 1423: 1419: 1414: 1406: 1401: 1395: 1393: 1389: 1381: 1378: 1373: 1360: 1354: 1351: 1348: 1342: 1339: 1333: 1324: 1318: 1312: 1305: 1299: 1293: 1288: 1285: 1282: 1278: 1274: 1268: 1259: 1253: 1247: 1236: 1232: 1228: 1224: 1215: 1204: 1200: 1196: 1192: 1188: 1147: 1142: 1139: 1136: 1132: 1128: 1125: 1119: 1113: 1108: 1104: 1091: 1088: 1085: 1081: 1077: 1074: 1068: 1062: 1057: 1053: 1043: 1039: 1035: 1031: 1020: 1016: 1009: 1005: 1000: 996: 990: 986: 979: 975: 970: 965: 963: 962: 955: 953: 946: 928: 925: 922: 919: 909: 903: 897: 891: 886: 883: 880: 877: 873: 869: 863: 857: 851: 845: 836: 832: 828: 821: 817: 811: 798: 793: 790: 787: 783: 777: 774: 771: 767: 761: 758: 755: 752: 748: 744: 739: 736: 733: 729: 723: 720: 717: 713: 704: 699: 695: 691: 685: 679: 673: 668: 663: 657: 643: 628: 626: 622: 614: 612: 610: 606: 600: 586: 583: 579: 575: 569: 565: 559: 554: 549: 537: 533: 528: 515: 509: 506: 503: 500: 497: 494: 491: 488: 482: 479: 476: 466:Lie algebra, 465: 449: 429: 420: 418: 414: 390: 332: 303: 299: 289: 281: 269: 266: 263: 261: 251: 247: 237: 234: 219: 215: 208: 203: 199: 195: 193: 183: 179: 169: 166: 139: 132: 125: 121: 96: 91: 89: 85: 81: 77: 69: 67: 65: 61: 57: 54: 50: 46: 42: 38: 34: 30: 19: 6062:Balanced set 6036:Distribution 5974:Applications 5827:Krein–Milman 5812:Closed graph 5616: 5609: 5576: 5563: 5558: 5540: 5503: 5502:; Weyl, H., 5491: 5487: 5479: 5455: 5451: 5448:Stone, M. H. 5442: 5382: 5376: 5373:Stone, M. H. 5367: 5335: 5329: 5320: 5288: 5282: 5273: 5252: 5247: 5241: 5236: 5227: 5222: 5217: 5211: 5203: 5199: 5193: 5178:C0-semigroup 5163:Weyl algebra 5113: 5101: 5094: 5091: 5081: 5070: 5059: 5056: 5052: 5045: 5042: 4841: 4690: 4673: 4537: 4524: 4513: 4498: 4491: 4484: 4473: 4466: 4460: 4438: 4435: 4431: 4427: 4416: 4409: 4406: 4388: 4381: 4372: 4365: 4361: 4352: 4345: 4336: 4327: 4318: 4311: 4308: 4139: 4132: 4120: 3961: 3952: 3837: 3574: 3570: 3562: 3558: 3541: 3511: 3508: 3423: 3412: 3408: 3394: 3385: 3376: 3367: 3363:automorphism 3236: 3220: 3210: 3201: 3190: 3186: 3182: 3178: 3169: 3160: 3149: 3135: 3133:1. To show 3125: 3120: 3112: 3109: 3100: 3093: 2944: 2939: 2929: 2924:there is an 2913: 2905: 2901: 2897: 2633: 2624: 2618: 2608: 2605: 2602: 2477: 2473: 2456: 2451: 2433: 2422: 2418: 2411: 2407: 2403: 2399: 2391: 2387: 2274: 2179: 2172: 2168: 2157: 2153: 2076: 1979: 1971: 1900: 1872: 1861:acts on the 1856: 1850: 1840: 1833: 1821: 1805: 1678: 1667: 1658: 1652: 1648: 1642: 1636: 1630: 1620: 1614: 1609: 1600: 1596:quantization 1595: 1585: 1580: 1578: 1564: 1558: 1552: 1547: 1544: 1537: 1534: 1530: 1523: 1520: 1516: 1498: 1492: 1483: 1473: 1464: 1458: 1447: 1440: 1435: 1433: 1427: 1418:Weyl algebra 1412: 1404: 1399: 1396: 1385: 1216: 1202: 1198: 1194: 1190: 1186: 1041: 1037: 1033: 1029: 1018: 1014: 1007: 1003: 998: 994: 988: 984: 977: 973: 966: 959: 956: 951: 948: 838: 830: 826: 819: 815: 812: 697: 693: 689: 683: 677: 671: 661: 655: 641: 629: 620: 618: 601: 581: 567: 563: 552: 535: 532:Hermann Weyl 529: 462:satisfy the 421: 416: 388: 92: 73: 36: 26: 5991:Heat kernel 5981:Hardy space 5888:Trace class 5802:Hahn–Banach 5764:Topological 5251:‖ ≥ 5239:: 2‖ 5233:, so that, 5221:‖ ≥ 4480:cardinality 3538:is unique. 2444:Lie algebra 1826:, i.e. the 1694:defined by 1448:In detail: 1422:CCR algebra 1231:Schrödinger 969:irreducible 80:observables 78:, physical 29:mathematics 6115:Categories 5924:C*-algebra 5739:Properties 5265:References 5225:ℏ ‖ 3968:such that 3530:). Since 3110:Note that 2183:such that 1865:*-algebra 1857:The group 1646:-algebras 1612:, written 1375:See also: 1223:Heisenberg 566:) = Trace( 546:acting on 367:. Assume 41:uniqueness 5898:Unbounded 5893:Transpose 5851:Operators 5780:Separable 5775:Reflexive 5760:Algebraic 5746:Barrelled 5409:0027-8424 5352:0003-486X 5313:120528257 5305:0025-5831 5209:2‖ 5124:Frobenius 4925:χ 4896:∈ 4889:∑ 4819:otherwise 4772:ω 4705:χ 4638:ψ 4620:⋅ 4611:ω 4591:ψ 4536:ℓ( 4280:δ 4266:∗ 4200:∗ 4170:∂ 4166:∂ 4097:− 4091:ψ 4073:ψ 4025:α 4006:∗ 3923:− 3914:− 3858:α 3803:ψ 3792:− 3783:⋅ 3774:− 3751:∫ 3736:⋅ 3730:− 3712:⋅ 3662:ψ 3642:⋅ 3620:⋅ 3611:− 3588:∫ 3483:α 3465:∗ 3341:⋅ 3335:− 3309:− 3301:− 3288:→ 3250:α 3058:ψ 3038:⋅ 3009:ψ 2468:Lie group 2311:ρ 2307:⋊ 2255:γ 2237:γ 2220:∗ 2209:γ 2132:^ 2129:ρ 2123:⋊ 2112:^ 2097:∗ 2057:γ 2048:^ 2030:γ 2021:γ 2012:^ 2002:⋅ 1919:⋅ 1778:μ 1758:¯ 1745:γ 1733:∫ 1723:γ 1714:^ 1705:↦ 1394:, below. 1343:ψ 1325:ψ 1294:ψ 1260:ψ 1109:∗ 1058:∗ 917:∀ 878:− 753:− 605:Sylvester 513:ℏ 498:− 399:ℏ 375:ℏ 287:∂ 282:ψ 279:∂ 273:ℏ 267:− 238:ψ 209:ψ 170:ψ 95:real line 56:operators 6100:Category 5912:Algebras 5794:Theorems 5751:Complete 5720:Schwartz 5666:glossary 5484:Weyl, H. 5435:16587545 5231:‖ 5207:, hence 5130:See also 4790:if  3195:for any 2617:M(0, 0, 2476:+ 2) × ( 1828:spectrum 1562:, where 1045:so that 1032: : 578:Wielandt 389:non-zero 120:momentum 53:momentum 49:position 47:between 5903:Unitary 5883:Nuclear 5868:Compact 5863:Bounded 5858:Adjoint 5832:Min–max 5725:Sobolev 5710:Nuclear 5700:Hilbert 5695:Fréchet 5660: ( 5599:0407202 5472:1968538 5426:1075964 5387:Bibcode 5360:1968535 4675:Theorem 3954:Theorem 3840:unitary 3552:is the 3543:Theorem 3219:is the 2915:Theorem 1844:. When 1682:be the 1607:scalars 1581:central 1513:-group 1193:  1189:  574:bounded 419:time). 411:is the 43:of the 31:and in 5878:Normal 5715:Orlicz 5705:Hölder 5685:Banach 5674:Spaces 5662:topics 5621:online 5597:  5587:  5547:  5510:  5470:  5433:  5423:  5415:  5407:  5358:  5350:  5311:  5303:  4454:as an 3815:  3683:  3361:is an 3145:finite 2900:= log 2638:, are 2381:, the 1881:: for 1690:. The 1570:center 1477:(with 1436:unique 1160:where 645:, and 562:Trace( 35:, the 5690:Besov 5468:JSTOR 5417:85485 5413:JSTOR 5356:JSTOR 5309:S2CID 5185:Notes 2908:) − 1 1672:be a 1502:, and 623:. By 558:trace 417:times 6038:(or 5756:Dual 5585:ISBN 5545:ISBN 5508:ISBN 5431:PMID 5405:ISSN 5348:ISSN 5301:ISSN 4442:for 4379:and 4343:and 4133:The 3392:and 3185:) = 3121:left 2627:the 2611:2n+1 2480:+ 2) 2462:for 2166:and 1889:and 1814:and 1676:and 1668:Let 1420:(or 1164:and 1040:) → 1012:and 982:and 824:and 675:and 659:and 649:and 634:and 630:Let 595:and 129:and 62:and 51:and 5610:365 5496:doi 5460:doi 5421:PMC 5395:doi 5340:doi 5293:doi 5289:104 4688:of 4542:by 4518:in 4450:of 3556:on 3421:in 3406:on 3365:of 3123:by 2949:by 2636:= 1 2625:not 2470:of 2414:)} 2406:), 2385:on 2279:of 2177:of 2162:of 1978:C*( 1976:on 1893:in 1885:in 1832:C*( 1830:of 1810:of 1804:C*( 1686:of 1555:+ 1 1407:+ 1 1237:), 1225:'s 1172:is 1099:and 607:'s 582:any 86:on 74:In 27:In 6117:: 5664:– 5595:MR 5593:, 5583:, 5519:^ 5492:46 5490:, 5466:, 5456:33 5454:, 5429:, 5419:, 5411:, 5403:, 5393:, 5383:16 5381:, 5354:, 5346:, 5336:33 5307:, 5299:, 5287:, 5204:nx 5202:ℏ 5198:= 5029:1. 4430:= 4399:. 3573:(2 3567:. 3430:, 3208:. 3187:π′ 3156:π′ 3154:, 3126:ha 2459:+1 2438:, 2421:= 2394:)) 2081:*- 1984:: 1905:, 1651:→ 1576:. 1557:→ 1431:. 1214:. 1201:+ 1197:= 997:: 961:E1 954:. 945:) 943:E1 696:+ 692:→ 640:= 568:BA 564:AB 542:, 442:, 90:. 66:. 6042:) 5766:) 5762:/ 5758:( 5668:) 5650:e 5643:t 5636:v 5623:. 5514:. 5498:: 5462:: 5397:: 5389:: 5342:: 5295:: 5257:. 5255:ℏ 5253:n 5248:x 5242:p 5237:n 5235:∀ 5228:x 5223:n 5218:x 5212:p 5200:i 5104:) 5102:K 5100:( 5097:n 5095:H 5088:. 5084:h 5082:U 5073:h 5071:U 5062:) 5060:Z 5057:p 5055:/ 5053:Z 5051:( 5048:n 5046:H 5026:= 5022:| 5018:K 5014:| 5008:n 5005:2 5000:| 4995:K 4991:| 4982:1 4979:+ 4976:n 4973:2 4968:| 4963:K 4959:| 4954:1 4949:= 4944:2 4939:| 4934:) 4931:g 4928:( 4921:| 4915:) 4912:K 4909:( 4904:n 4900:H 4893:g 4882:| 4878:) 4874:K 4870:( 4865:n 4861:H 4856:| 4852:1 4813:0 4806:0 4803:= 4800:b 4797:= 4794:a 4784:) 4781:c 4778:h 4775:( 4766:n 4761:| 4756:K 4752:| 4745:{ 4740:= 4737:) 4734:) 4731:c 4728:, 4725:b 4722:, 4719:a 4716:( 4712:M 4708:( 4693:h 4691:U 4686:χ 4682:h 4659:. 4656:) 4653:a 4650:h 4647:+ 4644:x 4641:( 4635:) 4632:c 4629:h 4626:+ 4623:x 4617:b 4614:( 4608:= 4605:) 4602:x 4599:( 4595:] 4588:) 4585:c 4582:, 4579:b 4576:, 4573:a 4570:( 4566:M 4560:h 4556:U 4551:[ 4540:) 4538:K 4527:h 4525:U 4520:K 4516:h 4501:) 4499:K 4497:( 4494:n 4492:H 4487:| 4485:K 4483:| 4476:) 4474:K 4472:( 4469:n 4467:H 4461:T 4452:K 4448:ω 4444:p 4439:Z 4436:p 4434:/ 4432:Z 4428:K 4423:K 4419:) 4417:K 4415:( 4412:n 4410:H 4389:j 4382:a 4375:j 4373:a 4368:) 4366:R 4364:( 4362:L 4353:j 4346:a 4339:j 4337:a 4330:j 4328:a 4319:j 4312:a 4295:. 4290:k 4287:, 4284:j 4276:= 4272:] 4261:k 4257:a 4253:, 4248:j 4244:a 4239:[ 4218:, 4213:j 4209:z 4205:= 4195:j 4191:a 4186:, 4178:j 4174:z 4161:= 4156:j 4152:a 4140:C 4106:. 4103:) 4100:x 4094:( 4088:= 4085:) 4082:x 4079:( 4076:] 4068:1 4064:W 4060:[ 4040:) 4037:g 4034:( 4029:2 4019:h 4015:U 4011:= 4001:1 3997:W 3991:h 3987:U 3981:1 3977:W 3965:1 3962:W 3938:. 3935:) 3932:c 3929:, 3926:b 3920:, 3917:a 3911:( 3907:M 3903:= 3900:) 3897:c 3894:, 3891:b 3888:, 3885:a 3882:( 3878:M 3872:2 3868:) 3862:h 3854:( 3824:. 3821:y 3818:d 3812:) 3809:y 3806:( 3798:) 3795:b 3789:p 3786:( 3780:y 3777:i 3770:e 3762:n 3757:R 3745:) 3742:) 3739:a 3733:b 3727:c 3724:( 3721:h 3718:+ 3715:p 3709:a 3706:h 3703:( 3700:i 3696:e 3692:= 3689:x 3686:d 3680:) 3677:a 3674:h 3671:+ 3668:x 3665:( 3657:) 3654:c 3651:h 3648:+ 3645:x 3639:b 3636:( 3633:i 3629:e 3623:p 3617:x 3614:i 3607:e 3599:n 3594:R 3577:) 3575:π 3565:) 3563:R 3561:( 3559:L 3550:W 3536:W 3532:W 3524:W 3514:h 3512:U 3495:. 3492:) 3489:g 3486:( 3478:h 3474:U 3470:= 3461:W 3457:) 3454:g 3451:( 3446:h 3442:U 3438:W 3426:n 3424:H 3419:g 3415:) 3413:R 3411:( 3409:L 3404:W 3399:α 3397:h 3395:U 3388:h 3386:U 3379:n 3377:H 3370:n 3368:H 3348:) 3344:b 3338:a 3332:c 3329:, 3326:a 3323:h 3320:, 3317:b 3312:1 3305:h 3297:( 3292:M 3285:) 3282:c 3279:, 3276:b 3273:, 3270:a 3267:( 3263:M 3259:: 3254:h 3239:h 3204:n 3202:H 3197:z 3193:) 3191:z 3189:( 3183:z 3181:( 3179:π 3172:n 3170:H 3163:n 3161:H 3152:π 3138:h 3136:U 3115:h 3113:U 3103:n 3101:H 3079:. 3076:) 3073:a 3070:h 3067:+ 3064:x 3061:( 3053:) 3050:c 3047:h 3044:+ 3041:x 3035:b 3032:( 3029:i 3025:e 3021:= 3018:) 3015:x 3012:( 3005:] 3001:) 2998:) 2995:c 2992:, 2989:b 2986:, 2983:a 2980:( 2976:M 2972:( 2967:h 2963:U 2958:[ 2947:) 2945:R 2943:( 2940:L 2932:h 2930:U 2922:h 2906:z 2902:M 2898:z 2879:, 2874:] 2868:0 2863:0 2858:0 2851:0 2846:0 2841:0 2834:1 2829:0 2824:0 2818:[ 2813:= 2806:z 2801:, 2796:] 2790:0 2785:0 2780:0 2773:1 2768:0 2763:0 2756:0 2751:0 2746:0 2740:[ 2735:= 2728:Q 2723:, 2718:] 2712:0 2707:0 2702:0 2695:0 2690:0 2685:0 2678:0 2673:1 2668:0 2662:[ 2657:= 2650:P 2634:n 2621:) 2619:c 2609:H 2589:. 2584:] 2578:1 2573:0 2568:0 2561:b 2554:n 2550:1 2544:0 2537:c 2532:a 2527:1 2521:[ 2516:= 2513:) 2510:c 2507:, 2504:b 2501:, 2498:a 2495:( 2491:M 2478:n 2474:n 2472:( 2464:n 2457:n 2455:2 2452:H 2440:Q 2436:P 2423:R 2419:G 2412:γ 2410:( 2408:V 2404:s 2402:( 2400:U 2398:{ 2392:G 2390:( 2388:L 2368:) 2364:) 2361:G 2358:( 2353:2 2349:L 2344:( 2338:K 2316:G 2303:) 2300:G 2297:( 2292:0 2288:C 2261:. 2258:) 2252:( 2249:V 2246:) 2243:s 2240:( 2234:= 2231:) 2228:s 2225:( 2216:U 2212:) 2206:( 2203:V 2200:) 2197:s 2194:( 2191:U 2180:G 2175:) 2173:γ 2171:( 2169:V 2164:G 2160:) 2158:s 2156:( 2154:U 2139:G 2118:) 2109:G 2103:( 2093:C 2079:C 2063:. 2060:) 2054:( 2045:f 2039:) 2036:s 2033:( 2027:= 2024:) 2018:( 2008:) 2005:f 1999:s 1996:( 1982:) 1980:G 1974:G 1958:. 1955:) 1952:s 1949:+ 1946:t 1943:( 1940:f 1937:= 1934:) 1931:t 1928:( 1925:) 1922:f 1916:s 1913:( 1903:) 1901:G 1899:( 1897:0 1895:C 1891:f 1887:G 1883:s 1879:ρ 1875:) 1873:G 1871:( 1869:0 1867:C 1863:C 1859:G 1851:R 1846:G 1841:G 1836:) 1834:G 1824:) 1822:G 1820:( 1818:0 1816:C 1812:G 1808:) 1806:G 1787:) 1784:t 1781:( 1775:d 1772:) 1769:t 1766:( 1763:f 1754:) 1751:t 1748:( 1737:G 1729:= 1726:) 1720:( 1711:f 1702:f 1688:G 1679:G 1670:G 1653:A 1649:K 1643:K 1637:K 1631:K 1626:K 1621:K 1615:K 1610:K 1565:A 1559:A 1553:n 1551:2 1548:H 1541:. 1538:Z 1535:p 1533:/ 1531:Z 1526:) 1524:Z 1521:p 1519:/ 1517:Z 1515:( 1511:p 1507:p 1499:Z 1493:Z 1487:, 1484:R 1474:R 1468:, 1465:R 1459:R 1428:n 1426:2 1413:R 1405:n 1403:2 1400:H 1361:. 1358:) 1355:s 1352:+ 1349:x 1346:( 1340:= 1337:) 1334:x 1331:( 1328:] 1322:) 1319:s 1316:( 1313:V 1310:[ 1306:, 1303:) 1300:x 1297:( 1289:x 1286:t 1283:i 1279:e 1275:= 1272:) 1269:x 1266:( 1263:] 1257:) 1254:t 1251:( 1248:U 1245:[ 1219:n 1212:Q 1208:P 1203:t 1199:P 1195:e 1191:P 1187:e 1182:P 1178:x 1174:U 1170:W 1166:x 1162:p 1148:, 1143:p 1140:s 1137:i 1133:e 1129:= 1126:W 1123:) 1120:s 1117:( 1114:V 1105:W 1092:x 1089:t 1086:i 1082:e 1078:= 1075:W 1072:) 1069:t 1066:( 1063:U 1054:W 1042:H 1038:R 1036:( 1034:L 1030:W 1025:H 1021:) 1019:s 1017:( 1015:V 1010:) 1008:t 1006:( 1004:U 991:) 989:s 987:( 985:V 980:) 978:t 976:( 974:U 929:, 926:t 923:, 920:s 913:) 910:t 907:( 904:U 901:) 898:s 895:( 892:V 887:t 884:s 881:i 874:e 870:= 867:) 864:s 861:( 858:V 855:) 852:t 849:( 846:U 833:) 831:s 829:( 827:V 822:) 820:t 818:( 816:U 799:. 794:Q 791:t 788:i 784:e 778:P 775:s 772:i 768:e 762:t 759:s 756:i 749:e 745:= 740:P 737:s 734:i 730:e 724:Q 721:t 718:i 714:e 698:s 694:x 690:x 684:e 678:p 672:x 662:e 656:e 651:t 647:s 642:i 636:P 632:Q 597:x 593:p 589:ℏ 570:) 553:ħ 544:x 540:p 516:. 510:i 507:= 504:x 501:p 495:p 492:x 489:= 486:] 483:p 480:, 477:x 474:[ 450:p 430:x 354:R 333:V 309:) 304:0 300:x 296:( 290:x 270:i 264:= 257:) 252:0 248:x 244:( 241:] 235:p 232:[ 225:) 220:0 216:x 212:( 204:0 200:x 196:= 189:) 184:0 180:x 176:( 173:] 167:x 164:[ 140:p 127:x 105:R 20:)

Index

Stone-von Neumann theorem
mathematics
theoretical physics
uniqueness
canonical commutation relations
position
momentum
operators
Marshall Stone
John von Neumann
quantum mechanics
observables
linear operators
Hilbert spaces
real line
momentum
position operator
momentum operator
reduced Planck constant
canonical commutation relation
Hermann Weyl
finite-dimensional
trace
bounded
Wielandt
normed algebra
Sylvester
clock and shift matrices
Stone's theorem
functional calculus

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