1447:
crystal family of a space group is determined by either its lattice system or its point group. In 3 dimensions the only two lattice families that get merged in this way are the hexagonal and rhombohedral lattice systems, which are combined into the hexagonal crystal family. The 6 crystal families in 3 dimensions are called triclinic, monoclinic, orthorhombic, tetragonal, hexagonal, and cubic. Crystal families are commonly used in popular books on crystals, where they are sometimes called crystal systems.
3618:
3606:
3569:
3712:
3700:
3783:
3524:
3512:
3429:
3417:
3746:
3663:
3475:
3383:
3371:
3323:
3286:
4086:
4081:
4075:
4251:
3963:
4862:
4657:
5145:
5139:
4652:
3443:
3339:
31:
4070:
4245:
3958:
563:, to describe the degree of rotation, where the number is how many operations must be applied to complete a full rotation (e.g., 3 would mean a rotation one third of the way around the axis each time). The degree of translation is then added as a subscript showing how far along the axis the translation is, as a portion of the parallel lattice vector. So, 2
3890:
3631:
3537:
3254:
5133:
956:
Space group notation with an explicit origin. Rotation, translation and axis-direction symbols are clearly separated and inversion centers are explicitly defined. The construction and format of the notation make it particularly suited to computer generation of symmetry information. For example, group
844:
12. In this space group the twofold axes are not along the a and b-axes but in a direction rotated by 30°. The international symbols and international short symbols for some of the space groups were changed slightly between 1935 and 2002, so several space groups have 4 different international symbols
740:
Only certain combinations of symmetry elements are possible in a space group. Translations are always present, and the space group P1 has only translations and the identity element. The presence of mirrors implies glide planes as well, and the presence of rotation axes implies screw axes as well, but
1169:
There are (at least) 10 different ways to classify space groups into classes. The relations between some of these are described in the following table. Each classification system is a refinement of the ones below it. To understand an explanation given here it may be necessary to understand the next
1557:
It is essential in
Bieberbach's theorems to assume that the group acts as isometries; the theorems do not generalize to discrete cocompact groups of affine transformations of Euclidean space. A counter-example is given by the 3-dimensional Heisenberg group of the integers acting by translations on
1446:
The point group of a space group does not quite determine its lattice system, because occasionally two space groups with the same point group may be in different lattice systems. Crystal families are formed from lattice systems by merging the two lattice systems whenever this happens, so that the
1239:
Two space groups, considered as subgroups of the group of affine transformations of space, have the same affine space group type if they are the same up to an affine transformation, even if that inverts orientation. The affine space group type is determined by the underlying abstract group of the
5442:
of the space group is determined by the lattice system together with the initial letter of its name, which for the non-rhombohedral groups is P, I, F, A or C, standing for the principal, body centered, face centered, A-face centered or C-face centered lattices. There are seven rhombohedral space
1413:
Crystal systems are an ad hoc modification of the lattice systems to make them compatible with the classification according to point groups. They differ from crystal families in that the hexagonal crystal family is split into two subsets, called the trigonal and hexagonal crystal systems. The
724:
crystals, not identical to their mirror image; whereas space groups that do include at least one of those give achiral crystals. Achiral molecules sometimes form chiral crystals, but chiral molecules always form chiral crystals, in one of the space groups that permit this.
1250:
Sometimes called Z-classes. These are determined by the point group together with the action of the point group on the subgroup of translations. In other words, the arithmetic crystal classes correspond to conjugacy classes of finite subgroup of the general linear group
1363:
Sometimes called Q-classes. The crystal class of a space group is determined by its point group: the quotient by the subgroup of translations, acting on the lattice. Two space groups are in the same crystal class if and only if their point groups, which are subgroups of
1274:
Arithmetic crystal classes may be interpreted as different orientations of the point groups in the lattice, with the group elements' matrix components being constrained to have integer coefficients in lattice space. This is rather easy to picture in the two-dimensional,
839:
in this example) denotes the symmetry along the major axis (c-axis in trigonal cases), the second (2 in this case) along axes of secondary importance (a and b) and the third symbol the symmetry in another direction. In the trigonal case there also exists a space group
965:
The space groups with given point group are numbered by 1, 2, 3, ... (in the same order as their international number) and this number is added as a superscript to the Schönflies symbol for the point group. For example, groups numbers 3 to 5 whose point group is
252:. What this means is that the action of any element of a given space group can be expressed as the action of an element of the appropriate point group followed optionally by a translation. A space group is thus some combination of the translational symmetry of a
1201:). In three dimensions, for 11 of the affine space groups, there is no chirality-preserving (i.e. orientation-preserving) map from the group to its mirror image, so if one distinguishes groups from their mirror images these each split into two cases (such as P4
657:
that is a basis of the space group; the lattice must be symmetric under that point group, but the crystal structure itself may not be symmetric under that point group as applied to any particular point (that is, without a translation). For example, the
5426:
The lattice system can be found as follows. If the crystal system is not trigonal then the lattice system is of the same type. If the crystal system is trigonal, then the lattice system is hexagonal unless the space group is one of the seven in the
1525:
there are only a finite number of possibilities for the isomorphism class of the underlying group of a space group, and moreover the action of the group on
Euclidean space is unique up to conjugation by affine transformations. This answers part of
762:
The
International Union of Crystallography publishes tables of all space group types, and assigns each a unique number from 1 to 230. The numbering is arbitrary, except that groups with the same crystal system or point group are given consecutive
1271:
of its point group with its translation subgroup. There are 73 symmorphic space groups, with exactly one in each arithmetic crystal class. There are also 157 nonsymmorphic space group types with varying numbers in the arithmetic crystal classes.
5455:
Convert all symmetry elements with translational components into their respective symmetry elements without translation symmetry (Glide planes are converted into simple mirror planes; Screw axes are converted into simple axes of
2073:)). Frieze groups are magnetic 1D line groups and layer groups are magnetic wallpaper groups, and the axial 3D point groups are magnetic 2D point groups. Number of original and magnetic groups by (overall, lattice) dimension:(
2057:. The time reversal element flips a magnetic spin while leaving all other structure the same and it can be combined with a number of other symmetry elements. Including time reversal there are 1651 magnetic space groups in 3D (
1433:). In three dimensions the lattice point group can have one of the 7 different orders 2, 4, 8, 12, 16, 24, or 48. The hexagonal crystal family is split into two subsets, called the rhombohedral and hexagonal lattice systems.
1414:
trigonal crystal system is larger than the rhombohedral lattice system, the hexagonal crystal system is smaller than the hexagonal lattice system, and the remaining crystal systems and lattice systems are the same.
6022:Записки Императорского С.-Петербургского Минералогического Общества (Zapiski Imperatorskova Sankt Petersburgskova Mineralogicheskova Obshchestva, Proceedings of the Imperial St. Petersburg Mineralogical Society)
1108:. However, crystallographers would not use Strukturbericht notation to describe the space group, rather it would be used to describe a specific crystal structure (e.g. space group + atomic arrangement (motif)).
6055:Записки Императорского С.-Петербургского Минералогического Общества (Zapiski Imperatorskogo Sant-Petersburgskogo Mineralogicheskogo Obshchestva, Proceedings of the Imperial St. Petersburg Mineralogical Society)
5414:
plane is a double glide plane, one having glides in two different directions. They are found in seven orthorhombic, five tetragonal and five cubic space groups, all with centered lattice. The use of the symbol
2036:
groups). These symmetries contain an element known as time reversal. They treat time as an additional dimension, and the group elements can include time reversal as reflection in it. They are of importance in
164:
which have been known for several centuries, though the proof that the list was complete was only given in 1891, after the much more difficult classification of space groups had largely been completed.
5431:
consisting of the 7 trigonal space groups in the table above whose name begins with R. (The term rhombohedral system is also sometimes used as an alternative name for the whole trigonal system.) The
1240:
space group. In three dimensions, Fifty-four of the affine space group types preserve chirality and give chiral crystals. The two enantiomorphs of a chiral crystal have the same affine space group.
755:
There are at least ten methods of naming space groups. Some of these methods can assign several different names to the same space group, so altogether there are many thousands of different names.
5435:
is larger than the hexagonal crystal system, and consists of the hexagonal crystal system together with the 18 groups of the trigonal crystal system other than the seven whose names begin with R.
1914:
In 3D, there are 230 crystallographic space group types, which reduces to 219 affine space group types because of some types being different from their mirror image; these are said to differ by
1127:
As the name suggests, the orbifold notation describes the orbifold, given by the quotient of
Euclidean space by the space group, rather than generators of the space group. It was introduced by
823:
21, showing that it exhibits primitive centering of the motif (i.e., once per unit cell), with a threefold screw axis and a twofold rotation axis. Note that it does not explicitly contain the
1570:
This table gives the number of space group types in small dimensions, including the numbers of various classes of space group. The numbers of enantiomorphic pairs are given in parentheses.
1197:. Thus e.g. a change of angle between translation vectors does not affect the space group type if it does not add or remove any symmetry. A more formal definition involves conjugacy (see
1558:
the
Heisenberg group of the reals, identified with 3-dimensional Euclidean space. This is a discrete cocompact group of affine transformations of space, but does not contain a subgroup
811:). The next three describe the most prominent symmetry operation visible when projected along one of the high symmetry directions of the crystal. These symbols are the same as used in
5915:], Lehrbücher und Monographien aus dem Gebiete der exakten Wissenschaften (Textbooks and Monographs from the Fields of the Exact Sciences), vol. 13, Verlag Birkhäuser, Basel,
287:
in a unit cell is thus the number of lattice points in the cell times the order of the point group. This ranges from 1 in the case of space group P1 to 192 for a space group like Fm
6129:; Birman, J.L.; Dénoyer, F.; Koptsik, V.A.; Verger-Gaugry, J.L.; Weigel, D.; Yamamoto, A.; Abrahams, S.C.; Kopsky, V. (2002), "Report of a Subcommittee on the Nomenclature of
5477:
2971:
2816:
2739:
2662:
2505:
2428:
2271:
3172:
2893:
2582:
2348:
2191:
1267:) if there is a point such that all symmetries are the product of a symmetry fixing this point and a translation. Equivalently, a space group is symmorphic if it is a
6038:. American Crystallographic Association Monograph No. 7. Translated by David and Katherine Harker. Buffalo, NY: American Crystallographic Association. pp. 50–131.
1135:, and is not used much outside mathematics. Some of the space groups have several different fibrifolds associated to them, so have several different fibrifold symbols.
3093:
3051:
3009:
2935:
2780:
2703:
2626:
2469:
2392:
2235:
3136:
2857:
2546:
2312:
2155:
280:
symmetry operations. The combination of all these symmetry operations results in a total of 230 different space groups describing all possible crystal symmetries.
445:
425:
405:
385:
365:
447:
glide, which is a fourth of the way along either a face or space diagonal of the unit cell. The latter is called the diamond glide plane as it features in the
228:
c) even though he already had the correct list of 230 groups from
Fedorov and Schönflies; the common claim that Barlow was unaware of their work is incorrect.
1209:). So instead of the 54 affine space groups that preserve chirality there are 54 + 11 = 65 space group types that preserve chirality (the
184:
noticed that two of them were really the same. The space groups in three dimensions were first enumerated in 1891 by
Fedorov (whose list had two omissions (I
1966:. There are 44 enantiomorphic point groups in 4-dimensional space. If we consider enantiomorphic groups as different, the total number of point groups is
5927:
Burckhardt, Johann Jakob (1967), "Zur
Geschichte der Entdeckung der 230 Raumgruppen" [On the history of the discovery of the 230 space groups],
2032:
In addition to crystallographic space groups there are also magnetic space groups (also called two-color (black and white) crystallographic groups or
188:
3d and Fdd2) and one duplication (Fmm2)), and shortly afterwards in 1891 were independently enumerated by Schönflies (whose list had four omissions (I
1393:), where the lattice point group is the group of symmetries of the underlying lattice that fix a point of the lattice, and contains the point group.
1550:
dimensions up to conjugation by affine transformations is essentially the same as classifying isomorphism classes for groups that are extensions of
1472:. They divided the 219 affine space groups into reducible and irreducible groups. The reducible groups fall into 17 classes corresponding to the 17
669:
The lattice dimension can be less than the overall dimension, resulting in a "subperiodic" space group. For (overall dimension, lattice dimension):
6288:
Neubüser, J.; Souvignier, B.; Wondratschek, H. (2002), "Corrections to
Crystallographic Groups of Four-Dimensional Space by Brown et al. (1978) ",
783:, which is the one most commonly used in crystallography, and usually consists of a set of four symbols. The first describes the centering of the
1279:
case. Some of the point groups have reflections, and the reflection lines can be along the lattice directions, halfway in between them, or both.
6871:
6727:
6184:
6089:
5929:
5886:
779:
The
Hermann–Mauguin (or international) notation describes the lattice and some generators for the group. It has a shortened form called the
5482:
451:
structure. In 17 space groups, due to the centering of the cell, the glides occur in two perpendicular directions simultaneously,
98:
of the pattern that leave it unchanged. In three dimensions, space groups are classified into 219 distinct types, or 230 types if
5507:
2597:
1954:
The 4895 4-dimensional groups were enumerated by Harold Brown, Rolf Bülow, and Joachim Neubüser et al. (
1879:
2062:
6673:
1998:
enumerated the ones of dimension 6, later the corrected figures were found. Initially published number of 826 Lattice types in
1527:
479:. For example, group Abm2 could be also called Acm2, group Ccca could be called Cccb. In 1992, it was suggested to use symbol
6645:
2363:
2283:
2206:
6634:
6561:
5829:"Über die Bewegungsgruppen der Euklidischen Räume (Zweite Abhandlung.) Die Gruppen mit einem endlichen Fundamentalbereich"
6660:
3852:
3221:
773:
3842:
2033:
1022:
241:
6684:
1521:
subgroup of finite index, and is also the unique maximal normal abelian subgroup. He also showed that in any dimension
720:
The 65 "Sohncke" space groups, not containing any mirrors, inversion points, improper rotations or glide planes, yield
7233:
6556:
5428:
1030:
559:
is a rotation about an axis, followed by a translation along the direction of the axis. These are noted by a number,
6456:
6246:
1417:
The lattice system of a space group is determined by the conjugacy class of the lattice point group (a subgroup of GL
6720:
6168:
201:
200:
m)). The correct list of 230 space groups was found by 1892 during correspondence between Fedorov and Schönflies.
5695:
1194:
181:
7228:
7218:
6782:
5432:
4854:
261:
6046:
5597:
6133:-Dimensional Crystallography. II. Symbols for arithmetic crystal classes, Bravais classes and space groups",
6013:
2061:, p.428). It has also been possible to construct magnetic versions for other overall and lattice dimensions (
303:
The elements of the space group fixing a point of space are the identity element, reflections, rotations and
7182:
6551:
6350:
5551:
1916:
1875:
815:, with the addition of glide planes and screw axis, described above. By way of example, the space group of
328:
99:
7223:
7067:
6476:
3857:
3226:
960:
103:
5541:
7053:
6713:
6468:
5837:
5791:
1190:
1182:
1151:
7005:
3617:
3605:
5696:"On the minimum number of beams needed to distinguish enantiomorphs in X-ray and electron diffraction"
3568:
7029:
7023:
6787:
6513:
6359:
6327:
6261:
6218:
6107:
5910:
5832:
5786:
5707:
5668:
5125:
3817:
2828:
2027:
1477:
750:
95:
6469:"Enantiomorphism of crystallographic groups in higher dimensions with results in dimensions up to 6"
5785:
Bieberbach, Ludwig (1911), "Über die Bewegungsgruppen der Euklidischen Räume" [On the groups of
1088:
Silicates. Some structure designation share the same space groups. For example, space group 225 is A
6762:
6736:
6700:
3437:
3333:
2054:
663:
106:
6695:
6348:
Palistrant, A. F. (2012), "Complete Scheme of Four-Dimensional Crystallographic Symmetry Groups",
6962:
6778:
6772:
6608:
6572:
6539:
6445:
6375:
6198:
5973:
5962:
5862:
5816:
5774:
5499:
2050:
2038:
1461:
1453:
1268:
1128:
1120:
347:
is a reflection in a plane, followed by a translation parallel with that plane. This is noted by
91:
2944:
2789:
2712:
2635:
2478:
2401:
2244:
176:. More accurately, he listed 66 groups, but both the Russian mathematician and crystallographer
3711:
3699:
3145:
2866:
2555:
2321:
2164:
7213:
7124:
6885:
6592:
6493:
6429:
6307:
6277:
6234:
6180:
6152:
6085:
5993:
5946:
5882:
5854:
5808:
4223:
Pmmm, Pnnn, Pccm, Pban, Pmma, Pnna, Pmna, Pcca, Pbam, Pccn, Pbcm, Pnnm, Pmmn, Pbcn, Pbca, Pnma
3862:
3782:
3625:
3523:
3511:
3428:
3416:
3231:
1539:
1498:
1157:
1112:
741:
the converses are not true. An inversion and a mirror implies two-fold screw axes, and so on.
304:
269:
6701:
The Geometry Center: 10.1 Formulas for Symmetries in Cartesian Coordinates (three dimensions)
5757:[On the geometric properties of rigid structures and their application to crystals],
2014:
counted the enantiomorphs, but that paper relied on old erroneous CARAT data for dimension 6.
7192:
7129:
7104:
7096:
7088:
7080:
7072:
7059:
7041:
7035:
6584:
6529:
6521:
6485:
6421:
6395:
6367:
6335:
6297:
6269:
6226:
6172:
6142:
6115:
6077:
5977:
5938:
5846:
5800:
5766:
5715:
5676:
5598:"Zusammenstellung der kirstallographischen Resultate des Herrn Schoenflies und der meinigen"
5491:
4085:
4080:
4074:
3867:
3745:
3662:
3474:
3382:
3370:
3322:
3285:
3236:
3071:
3029:
2987:
2913:
2758:
2681:
2604:
2447:
2370:
2213:
1962:
corrected the number of enantiomorphic groups from 112 to 111, so total number of groups is
1438:
1139:
1132:
331:
of the space group by the Bravais lattice is a finite group which is one of the 32 possible
169:
87:
17:
6604:
6441:
6209:
Litvin, D.B. (May 2008), "Tables of crystallographic properties of magnetic space groups",
6194:
6005:
5958:
5920:
5896:
3114:
2835:
2524:
2290:
2133:
7145:
6979:
6848:
6757:
6696:
The Geometry Center: 2.1 Formulas for Symmetries in Cartesian Coordinates (two dimensions)
6677:
6638:
6600:
6568:
6437:
6190:
6073:
6001:
5954:
5916:
5892:
5874:
5755:"Über die geometrischen Eigenschaften starrer Strukturen und ihre Anwendung auf Kristalle"
5439:
4250:
3962:
3248:
3188:
2517:
1897:
1473:
1399:
1352:
1276:
784:
690:
622:
324:
320:
308:
284:
257:
245:
161:
127:
114:
1144:
Spatial and point symmetry groups, represented as modifications of the pure reflectional
6517:
6363:
6331:
6265:
6222:
6111:
5711:
5672:
7150:
6992:
6945:
6938:
6931:
6924:
6896:
6863:
6833:
6828:
6818:
6767:
4861:
4656:
3832:
3531:
3197:
2046:
2042:
1405:
1198:
1014:
824:
729:
430:
410:
390:
370:
350:
292:
249:
208:) later enumerated the groups with a different method, but omitted four groups (Fdd2, I
177:
136:
83:
6400:
6318:
Opgenorth, J; Plesken, W; Schulz, T (1998), "Crystallographic Algorithms and Tables",
5981:
5653:
5600:[Compilation of the crystallographic results of Mr. Schoenflies and of mine].
7207:
7160:
7119:
7047:
6968:
6953:
6901:
6853:
6808:
6612:
6202:
5966:
5866:
5820:
5778:
1518:
1210:
1145:
659:
448:
6670:
6543:
6449:
6379:
7187:
7114:
6914:
6876:
6823:
6813:
6803:
6744:
6425:
5144:
5138:
4062:
2440:
1543:
1214:
684:
117:
in any number of dimensions. In dimensions other than 3, they are sometimes called
6504:
Souvignier, Bernd (2006), "The four-dimensional magnetic point and space groups",
5835:
in Euclidean spaces (Second essay.) Groups with a finite fundamental domain],
4651:
30:
6655:
6081:
1505:-dimensional Euclidean space with a compact fundamental domain. Bieberbach (
6843:
6631:
6409:
6126:
3872:
3442:
3338:
3241:
3206:
2751:
812:
706:
654:
344:
332:
277:
145:
of the crystal. A definitive source regarding 3-dimensional space groups is the
67:
6525:
957:
number 3 has three Hall symbols: P 2y (P 1 2 1), P 2 (P 1 1 2), P 2x (P 2 1 1).
172:
listed the 65 space groups (called Sohncke groups) whose elements preserve the
7155:
6489:
6459:(1923), "Theorie der Kristallstruktur" [Theory of Crystal Structure],
6386:
Plesken, Wilhelm; Hanrath, W (1984), "The lattices of six-dimensional space",
6371:
6340:
6302:
6273:
6230:
6147:
6119:
5719:
5620:
4237:
3950:
696:
680:
674:
567:
is a twofold rotation followed by a translation of 1/2 of the lattice vector.
556:
273:
62:
indicates the glide planes (b) and (c). The black boxes outline the unit cell.
6665:
6596:
6433:
6176:
5997:
5950:
5858:
5812:
5770:
7015:
3882:
2674:
1465:
700:
253:
173:
75:
6497:
6311:
6281:
6238:
6156:
4069:
835:
21, it is trigonal). In the international short symbol the first symbol (3
240:
The space groups in three dimensions are made from combinations of the 32
6752:
5733:
4644:
1469:
265:
142:
110:
6069:
International Tables for Crystallography, Volume A: Space Group Symmetry
5459:
Axes of rotation, rotoinversion axes and mirror planes remain unchanged.
427:
glide, which is a glide along the half of a diagonal of a face, and the
6588:
5942:
5850:
5804:
5503:
4244:
3957:
483:
for such planes. The symbols for five space groups have been modified:
71:
54:
indicates the mirror plane perpendicular to the c-axis (a), the second
6534:
5680:
3889:
1546:
group. Combining these results shows that classifying space groups in
1513:) proved that the subgroup of translations of any such group contains
847:
The viewing directions of the 7 crystal systems are shown as follows.
232:
describes the history of the discovery of the space groups in detail.
6671:
Interactive 3D visualization of all 230 crystallographic space groups
1615:
Geometric crystal classes, Q-classes, crystallographic point groups,
1457:
1226:
816:
721:
575:
The general formula for the action of an element of a space group is
35:
6165:
Group theoretical methods and applications to molecules and crystals
5828:
5754:
5495:
1036:
A related notation for crystal structures given a letter and index:
6098:
Hall, S.R. (1981), "Space-Group Notation with an Explicit Origin",
5873:
Brown, Harold; Bülow, Rolf; Neubüser, Joachim; Wondratschek, Hans;
1385:
These correspond to conjugacy classes of lattice point groups in GL
4594:
P4/mmm, P4/mcc, P4/nbm, P4/nnc, P4/mbm, P4/mnc, P4/nmm, P4/ncc, P4
1186:
6575:[On an algorithm for the determination of space groups],
5634:
1643:
1634:
1625:
1616:
1607:
1598:
1589:
1580:
407:, depending on which axis the glide is along. There is also the
5132:
3807:
Both: reflection lines both along and between lattice directions
3630:
3536:
3253:
1222:
58:
indicates the mirror planes parallel to the c-axis (b), and the
6709:
3804:
Between: reflection lines halfway in between lattice directions
1176:(Crystallographic) space group types (230 in three dimensions)
323:
3, called the Bravais lattice (so named after French physicist
3794:
For each geometric class, the possible arithmetic classes are
1959:
1955:
1476:, and the remaining 35 irreducible groups are the same as the
1185:
of space, have the same space group type if they are the same
827:, although this is unique to each space group (in the case of
6686:
The Fibrifold Notation and Classification for 3D Space Groups
6650:
1456:, Delgado Friedrichs, and Huson et al. (
1383:
These are determined by the underlying Bravais lattice type.
3191:
using the classification of the 2-dimensional space groups:
1460:) gave another classification of the space groups, called a
6643:
2007:
1646:
1637:
1628:
1619:
1610:
1601:
1592:
1583:
1217:
belong to the same crystallographic space group, such as P2
1534:
showed that conversely any group that is the extension of
1181:
Two space groups, considered as subgroups of the group of
102:
copies are considered distinct. Space groups are discrete
6705:
6067:
5654:"The Crystallographic Space Groups in Geometric Algebra"
3183:
Table of space groups in 2 dimensions (wallpaper groups)
6573:"Über einen Algorithmus zur Bestimmung der Raumgruppen"
327:). There are 14 possible types of Bravais lattice. The
6626:
2003:
605:
is its vector, and where the element transforms point
6247:"Tables of properties of magnetic subperiodic groups"
3148:
3117:
3074:
3032:
2990:
2947:
2916:
2869:
2838:
2792:
2761:
2715:
2684:
2638:
2607:
2558:
2527:
2481:
2450:
2404:
2373:
2324:
2293:
2247:
2216:
2167:
2136:
433:
413:
393:
373:
353:
6410:"Counting crystallographic groups in low dimensions"
5447:
Derivation of the crystal class from the space group
1933:
refers to 3D. They were enumerated independently by
1245:
Arithmetic crystal classes (73 in three dimensions)
7138:
7014:
6862:
6796:
6743:
6020:, The symmetry of regular systems of figures],
1234:Affine space group types (219 in three dimensions)
728:Among the 65 Sohncke groups are 22 that come in 11
319:The translations form a normal abelian subgroup of
5585:] (in German). Leipzig, Germany: B.G. Teubner.
5543:Die Entwicklung einer Theorie der Krystallstruktur
3166:
3130:
3087:
3045:
3003:
2965:
2929:
2887:
2851:
2810:
2774:
2733:
2697:
2656:
2620:
2576:
2540:
2499:
2463:
2422:
2386:
2342:
2306:
2265:
2229:
2185:
2149:
1874:One is the group of integers and the other is the
1229:, they belong to two enantiomorphic space groups.
439:
419:
399:
379:
359:
5879:Crystallographic groups of four-dimensional space
1517:linearly independent translations, and is a free
711:(3,3): The space groups discussed in this article
699:; with the 3D crystallographic point groups, the
6661:Crystal Lattice Structures: Index by Space Group
6072:, vol. A (5th ed.), Berlin, New York:
5602:Zeitschrift für Krystallographie und Mineralogie
5548:The Development of a Theory of Crystal Structure
3801:Along: reflection lines along lattice directions
1501:group, is a discrete subgroup of isometries of
6666:Full list of 230 crystallographic space groups
5976:; Delgado Friedrichs, Olaf; Huson, Daniel H.;
1999:
1960:Neubüser, Souvignier & Wondratschek (2002)
1259:) over the integers. A space group is called
6721:
1995:
1979:
8:
5652:David Hestenes; Jeremy Holt (January 2007).
662:structure does not have any point where the
86:of a repeating pattern in space, usually in
248:, each of the latter belonging to one of 7
6728:
6714:
6706:
5619:Sydney R. Hall; Ralf W. Grosse-Kunstleve.
5478:"Crystallography and cohomology of groups"
3847:Space groups (international short symbol)
3826:
3109:Four-dimensional discrete symmetry groups
2078:
2074:
2041:that contain ordered unpaired spins, i.e.
2011:
1983:
1942:
1531:
1510:
1506:
260:), the point group symmetry operations of
229:
192:3d, Pc, Cc, ?) and one duplication (P
27:Symmetry group of a configuration in space
6533:
6408:Plesken, Wilhelm; Schulz, Tilman (2000),
6399:
6339:
6301:
6146:
5905:Die Bewegungsgruppen der Kristallographie
3158:
3153:
3147:
3122:
3116:
3079:
3073:
3037:
3031:
2995:
2989:
2957:
2952:
2946:
2921:
2915:
2879:
2874:
2868:
2843:
2837:
2802:
2797:
2791:
2766:
2760:
2725:
2720:
2714:
2689:
2683:
2648:
2643:
2637:
2612:
2606:
2568:
2563:
2557:
2532:
2526:
2491:
2486:
2480:
2455:
2449:
2414:
2409:
2403:
2378:
2372:
2334:
2329:
2323:
2298:
2292:
2257:
2252:
2246:
2221:
2215:
2177:
2172:
2166:
2141:
2135:
432:
412:
392:
372:
352:
5564:
5527:
3821:
3193:
2284:One-dimensional discrete symmetry groups
2083:
1938:
1606:Abstract crystallographic point groups,
1572:
1358:Bravais flocks (14 in three dimensions)
1172:
849:
485:
160:Space groups in 2 dimensions are the 17
147:International Tables for Crystallography
119:
29:
5468:
1858:
1624:Arithmetic crystal classes, Z-classes,
1372:), are conjugate in the larger group GL
6872:Classification of finite simple groups
6627:International Union of Crystallography
6014:"Симметрія правильныхъ системъ фигуръ"
2070:
2066:
2004:Opgenorth, Plesken & Schulz (1998)
1934:
1497:dimensions, an affine space group, or
205:
5930:Archive for History of Exact Sciences
5635:"Strukturbericht - Wikimedia Commons"
5583:Crystal Systems and Crystal Structure
5550:] (in German). Leipzig, Germany:
3841:
3831:
3812:Table of space groups in 3 dimensions
3215:
2099:
2096:
1554:by a finite group acting faithfully.
272:(also called rotoinversion), and the
141:, and represent a description of the
90:. The elements of a space group (its
7:
6066:Hahn, Th. (2002), Hahn, Theo (ed.),
5579:Krystallsysteme und Krystallstruktur
5420:
3824:
1982:enumerated the ones of dimension 5.
1642:Crystallographic space group types,
1213:).For most chiral crystals, the two
149:
6018:Simmetriya pravil'nykh sistem figur
5982:"On three-dimensional space groups"
5694:J.C.H. Spence and J.M. Zuo (1994).
2058:
455:the same glide plane can be called
130:, space groups are also called the
5986:Beiträge zur Algebra und Geometrie
4225:Cmcm, Cmce, Cmmm, Cccm, Cmme, Ccce
1566:Classification in small dimensions
25:
6632:Point Groups and Bravais Lattices
6577:Commentarii Mathematici Helvetici
6401:10.1090/s0025-5718-1984-0758205-5
5903:Burckhardt, Johann Jakob (1947),
5881:, New York: Wiley-Interscience ,
5483:The American Mathematical Monthly
2022:Magnetic groups and time reversal
649:being the identity. The matrices
168:In 1879 the German mathematician
6506:Zeitschrift für Kristallographie
5759:Zeitschrift für Kristallographie
5700:Acta Crystallographica Section A
5143:
5137:
5131:
4860:
4655:
4650:
4249:
4243:
4084:
4079:
4073:
4068:
3961:
3956:
3888:
3781:
3744:
3710:
3698:
3661:
3629:
3616:
3604:
3567:
3535:
3522:
3510:
3473:
3441:
3427:
3415:
3381:
3369:
3337:
3321:
3284:
3252:
3216:Wallpaper groups (cell diagram)
2128:Zero-dimensional symmetry group
1880:symmetry groups in one dimension
1468:structures on the corresponding
283:The number of replicates of the
5661:Journal of Mathematical Physics
5443:groups, with initial letter R.
4795:
4639:
1480:and are classified separately.
6646:Bilbao Crystallographic Server
6426:10.1080/10586458.2000.10504417
6053:, Symmetry in the plane].
5577:Schönflies, Arthur M. (1891).
4194:, Ccc2, Amm2, Aem2, Ama2, Aea2
2908:Four-dimensional point groups
2829:Three-dimensional space groups
2598:Three-dimensional point groups
1:
5621:"Concise Space-Group Symbols"
3825:
768:International symbol notation
242:crystallographic point groups
180:and the German mathematician
6082:10.1107/97809553602060000100
3754:
3717:
3671:
3623:
3577:
3529:
3483:
3434:
3388:
3331:
3294:
3246:
3219:
2364:Two-dimensional point groups
2207:One-dimensional point groups
2000:Plesken & Hanrath (1984)
1528:Hilbert's eighteenth problem
18:Crystallographic space group
7139:Infinite dimensional groups
6557:Encyclopedia of Mathematics
6461:Gebrüder Bornträger, Berlin
6057:. 2nd series (in Russian).
6024:, 2nd series (in Russian),
5827:Bieberbach, Ludwig (1912),
5429:rhombohedral lattice system
1996:Plesken & Schulz (2000)
1980:Plesken & Schulz (2000)
1031:Strukturbericht designation
7250:
6526:10.1524/zkri.2006.221.1.77
6467:Souvignier, Bernd (2003),
6169:Cambridge University Press
5789:in Euclidean spaces],
5540:Sohncke, Leonhard (1879).
5452:Leave out the Bravais type
3815:
2966:{\displaystyle G_{40}^{1}}
2811:{\displaystyle G_{32}^{1}}
2734:{\displaystyle G_{31}^{1}}
2657:{\displaystyle G_{30}^{1}}
2500:{\displaystyle G_{21}^{1}}
2423:{\displaystyle G_{20}^{1}}
2266:{\displaystyle G_{10}^{1}}
2025:
1986:counted the enantiomorphs.
1633:Affine space group types,
1225:, but for others, such as
781:international short symbol
748:
641:) is a unique function of
7178:
6683:Huson, Daniel H. (1999),
6490:10.1107/S0108767303004161
6457:Schönflies, Arthur Moritz
6372:10.1134/S1063774512040104
6341:10.1107/S010876739701547X
6303:10.1107/S0108767302001368
6274:10.1107/S010876730500406X
6245:Litvin, D.B. (May 2005),
6231:10.1107/S010876730800768X
6148:10.1107/S010876730201379X
6120:10.1107/s0567739481001228
5720:10.1107/S0108767394002850
5124:
4853:
4643:
4236:
4061:
3949:
3881:
3846:
3798:None: no reflection lines
3787:
3750:
3667:
3624:
3573:
3530:
3479:
3435:
3332:
3327:
3290:
3247:
3210:
3204:
3196:
3167:{\displaystyle G_{4}^{1}}
2901:
2888:{\displaystyle G_{3}^{1}}
2590:
2577:{\displaystyle G_{2}^{1}}
2356:
2343:{\displaystyle G_{1}^{1}}
2199:
2186:{\displaystyle G_{0}^{1}}
2091:
2086:
2053:structures as studied by
1445:
1437:
1425:)) in the larger group GL
1355:(32 in three dimensions)
1249:
1244:
1238:
1233:
1180:
1175:
1076:More complex compounds),
695:(3,1): Three-dimensional
182:Arthur Moritz Schoenflies
7042:Special orthogonal group
6552:"Crystallographic group"
6477:Acta Crystallographica A
6414:Experimental Mathematics
6320:Acta Crystallographica A
6290:Acta Crystallographica A
6254:Acta Crystallographica A
6211:Acta Crystallographica A
6177:10.1017/CBO9780511534867
6135:Acta Crystallographica A
6100:Acta Crystallographica A
6047:"Симметрія на плоскости"
6045:Fedorov, E. S. (1891b).
6012:Fedorov, E. S. (1891a),
5771:10.1524/zkri.1894.23.1.1
5596:von Fedorow, E. (1892).
5433:hexagonal lattice system
2002:was corrected to 841 in
1488:
1441:(6 in three dimensions)
1408:(7 in three dimensions)
1402:(7 in three dimensions)
1193:of space that preserves
973:have Schönflies symbols
774:Hermann–Mauguin notation
6656:Space Group Info (new)
6651:Space Group Info (old)
6351:Crystallography Reports
6051:Simmetrija na ploskosti
6034:Fedorov, E. S. (1971).
5476:Hiller, Howard (1986).
4229:Immm, Ibam, Ibca, Imma
1876:infinite dihedral group
853:Position in the symbol
679:(2,1): Two-dimensional
673:(1,1): One-dimensional
299:Elements fixing a point
7068:Exceptional Lie groups
6163:Kim, Shoon K. (1999),
5831:[On the groups of
4790:P3m1, P31m, P3c1, P31c
4136:, C222, F222, I222, I2
3168:
3132:
3089:
3088:{\displaystyle G_{43}}
3047:
3046:{\displaystyle G_{42}}
3005:
3004:{\displaystyle G_{41}}
2967:
2931:
2930:{\displaystyle G_{40}}
2889:
2853:
2812:
2776:
2775:{\displaystyle G_{32}}
2735:
2699:
2698:{\displaystyle G_{31}}
2658:
2622:
2621:{\displaystyle G_{30}}
2578:
2542:
2501:
2465:
2464:{\displaystyle G_{21}}
2424:
2388:
2387:{\displaystyle G_{20}}
2344:
2308:
2267:
2231:
2230:{\displaystyle G_{10}}
2187:
2151:
2063:Daniel Litvin's papers
1183:affine transformations
1165:Classification systems
1100:. Space group 221 is A
1040:Elements (monatomic),
441:
421:
401:
381:
361:
63:
7054:Special unitary group
6550:Vinberg, E. (2001) ,
6032:English translation:
5911:Rigid Transformations
5838:Mathematische Annalen
5833:rigid transformations
5792:Mathematische Annalen
5787:rigid transformations
5639:commons.wikimedia.org
5419:became official with
3816:Further information:
3169:
3133:
3131:{\displaystyle G_{4}}
3090:
3048:
3006:
2968:
2932:
2890:
2854:
2852:{\displaystyle G_{3}}
2813:
2777:
2736:
2700:
2659:
2623:
2579:
2543:
2541:{\displaystyle G_{2}}
2502:
2466:
2425:
2389:
2345:
2309:
2307:{\displaystyle G_{1}}
2268:
2232:
2188:
2152:
2150:{\displaystyle G_{0}}
2008:Janssen et al. (2002)
1647:sequence A006227
1638:sequence A004029
1629:sequence A004027
1620:sequence A004028
1611:sequence A006226
1602:sequence A256413
1593:sequence A004031
1584:sequence A004032
1489:Bieberbach's theorems
1191:affine transformation
749:Further information:
442:
422:
402:
382:
362:
96:rigid transformations
33:
7151:Diffeomorphism group
7030:Special linear group
7024:General linear group
6036:Symmetry of Crystals
5978:Thurston, William P.
5734:"The CARAT Homepage"
3818:List of space groups
3146:
3115:
3072:
3030:
2988:
2945:
2914:
2867:
2836:
2790:
2759:
2713:
2682:
2636:
2605:
2556:
2525:
2479:
2448:
2402:
2371:
2322:
2291:
2245:
2214:
2165:
2134:
2028:Magnetic space group
751:List of space groups
431:
411:
391:
371:
351:
6976:Other finite groups
6763:Commutator subgroup
6518:2006ZK....221...77S
6364:2012CryRp..57..471P
6332:1998AcCrA..54..517O
6266:2005AcCrA..61..382L
6223:2008AcCrA..64..419L
6112:1981AcCrA..37..517H
5974:Conway, John Horton
5712:1994AcCrA..50..647S
5673:2007JMP....48b3514H
3163:
2962:
2884:
2807:
2730:
2653:
2573:
2496:
2419:
2339:
2262:
2182:
2055:neutron diffraction
2039:magnetic structures
1484:In other dimensions
1464:, according to the
1084:Organic compounds,
961:Schönflies notation
92:symmetry operations
34:The space group of
7234:Molecular geometry
7006:Rubik's Cube group
6963:Baby monster group
6773:Group homomorphism
6676:2021-04-18 at the
6637:2012-07-16 at the
6589:10.1007/BF02568029
5943:10.1007/BF00412962
5913:in Crystallography
5851:10.1007/BF01456724
5805:10.1007/BF01564500
5753:Barlow, W (1894),
5109:P6/mmm, P6/mcc, P6
4628:I4/mmm, I4/mcm, I4
4465:nm, P4cc, P4nc, P4
4176:, Pcc2, Pma2, Pca2
3164:
3149:
3128:
3085:
3043:
3001:
2963:
2948:
2927:
2885:
2870:
2849:
2808:
2793:
2772:
2731:
2716:
2695:
2654:
2639:
2618:
2574:
2559:
2538:
2497:
2482:
2461:
2420:
2405:
2384:
2340:
2325:
2304:
2263:
2248:
2227:
2183:
2168:
2147:
1597:Bravais lattices,
1579:Crystal families,
1538:by a finite group
1462:fibrifold notation
1314:: pmm, pmg, pgg; D
1269:semidirect product
1152:Geometric notation
1121:Fibrifold notation
1044:for AB compounds,
437:
417:
397:
377:
357:
305:improper rotations
202:William Barlow
64:
7201:
7200:
6886:Alternating group
6326:(Pt 5): 517–531,
6186:978-0-521-64062-6
6141:(Pt 6): 605–621,
6091:978-0-7923-6590-7
5888:978-0-471-03095-9
5681:10.1063/1.2426416
5408:
5407:
4198:Imm2, Iba2, Ima2
3792:
3791:
3205:Geometric class,
3180:
3179:
2051:antiferromagnetic
2012:Souvignier (2003)
1984:Souvignier (2003)
1964:4783 + 111 = 4894
1943:Schönflies (1891)
1855:
1854:
1588:Crystal systems,
1540:acting faithfully
1532:Zassenhaus (1948)
1451:
1450:
1158:geometric algebra
1113:Orbifold notation
949:
948:
664:cubic point group
645:that is zero for
548:
547:
440:{\displaystyle d}
420:{\displaystyle n}
400:{\displaystyle c}
380:{\displaystyle b}
360:{\displaystyle a}
270:improper rotation
258:lattice centering
230:Burckhardt (1967)
120:Bieberbach groups
16:(Redirected from
7241:
7193:Abstract algebra
7130:Quaternion group
7060:Symplectic group
7036:Orthogonal group
6730:
6723:
6716:
6707:
6692:
6691:
6615:
6569:Zassenhaus, Hans
6564:
6546:
6537:
6500:
6473:
6463:
6452:
6404:
6403:
6394:(168): 573–587,
6382:
6344:
6343:
6314:
6305:
6284:
6251:
6241:
6217:(Pt 3): 419–24,
6205:
6159:
6150:
6122:
6094:
6062:
6039:
6029:
6008:
5969:
5923:
5899:
5875:Zassenhaus, Hans
5869:
5823:
5781:
5745:
5744:
5742:
5740:
5730:
5724:
5723:
5691:
5685:
5684:
5658:
5649:
5643:
5642:
5631:
5625:
5624:
5616:
5610:
5609:
5593:
5587:
5586:
5574:
5568:
5562:
5556:
5555:
5537:
5531:
5525:
5519:
5518:
5516:
5515:
5506:. Archived from
5473:
5403:
5399:
5393:
5389:
5385:
5381:
5375:
5371:
5367:
5363:
5342:
5330:
5326:
5322:
5316:
5312:
5308:
5287:
5229:
5225:
5221:
5217:
5213:
5209:
5205:
5185:
5147:
5141:
5135:
5083:
5079:
5075:
5071:
5050:
4933:
4913:
4864:
4845:
4841:
4835:
4831:
4827:
4823:
4802:
4722:
4718:
4698:
4659:
4654:
4568:
4564:
4560:
4556:
4550:
4546:
4542:
4538:
4530:
4522:
4518:
4514:
4493:
4322:
4318:
4298:
4253:
4247:
4088:
4083:
4077:
4072:
3965:
3960:
3942:
3922:
3892:
3839:Bravais lattice
3828:
3822:
3785:
3748:
3714:
3702:
3665:
3633:
3620:
3608:
3571:
3539:
3526:
3514:
3477:
3445:
3431:
3419:
3385:
3373:
3341:
3325:
3288:
3256:
3202:Bravais lattice
3194:
3189:wallpaper groups
3173:
3171:
3170:
3165:
3162:
3157:
3137:
3135:
3134:
3129:
3127:
3126:
3094:
3092:
3091:
3086:
3084:
3083:
3052:
3050:
3049:
3044:
3042:
3041:
3010:
3008:
3007:
3002:
3000:
2999:
2972:
2970:
2969:
2964:
2961:
2956:
2936:
2934:
2933:
2928:
2926:
2925:
2894:
2892:
2891:
2886:
2883:
2878:
2858:
2856:
2855:
2850:
2848:
2847:
2817:
2815:
2814:
2809:
2806:
2801:
2781:
2779:
2778:
2773:
2771:
2770:
2740:
2738:
2737:
2732:
2729:
2724:
2704:
2702:
2701:
2696:
2694:
2693:
2663:
2661:
2660:
2655:
2652:
2647:
2627:
2625:
2624:
2619:
2617:
2616:
2583:
2581:
2580:
2575:
2572:
2567:
2547:
2545:
2544:
2539:
2537:
2536:
2518:Wallpaper groups
2506:
2504:
2503:
2498:
2495:
2490:
2470:
2468:
2467:
2462:
2460:
2459:
2429:
2427:
2426:
2421:
2418:
2413:
2393:
2391:
2390:
2385:
2383:
2382:
2349:
2347:
2346:
2341:
2338:
2333:
2313:
2311:
2310:
2305:
2303:
2302:
2272:
2270:
2269:
2264:
2261:
2256:
2236:
2234:
2233:
2228:
2226:
2225:
2192:
2190:
2189:
2184:
2181:
2176:
2156:
2154:
2153:
2148:
2146:
2145:
2100:Magnetic groups
2097:Ordinary groups
2084:
2015:
1993:
1987:
1977:
1971:
1969:
1965:
1952:
1946:
1912:
1906:
1898:wallpaper groups
1895:are also called
1889:
1883:
1872:
1866:
1863:
1645:
1636:
1627:
1618:
1609:
1600:
1591:
1582:
1573:
1474:wallpaper groups
1439:Crystal families
1173:
1140:Coxeter notation
1008:
1007:
996:
995:
984:
983:
850:
691:Wallpaper groups
486:
446:
444:
443:
438:
426:
424:
423:
418:
406:
404:
403:
398:
386:
384:
383:
378:
366:
364:
363:
358:
309:inversion points
290:
246:Bravais lattices
223:
215:
211:
195:
191:
187:
170:Leonhard Sohncke
162:wallpaper groups
132:crystallographic
88:three dimensions
21:
7249:
7248:
7244:
7243:
7242:
7240:
7239:
7238:
7229:Discrete groups
7219:Crystallography
7204:
7203:
7202:
7197:
7174:
7146:Conformal group
7134:
7108:
7100:
7092:
7084:
7076:
7010:
7002:
6989:
6980:Symmetric group
6959:
6949:
6942:
6935:
6928:
6920:
6911:
6907:
6897:Sporadic groups
6891:
6882:
6864:Discrete groups
6858:
6849:Wallpaper group
6829:Solvable groups
6797:Types of groups
6792:
6758:Normal subgroup
6739:
6734:
6689:
6682:
6678:Wayback Machine
6639:Wayback Machine
6623:
6618:
6567:
6549:
6503:
6471:
6466:
6455:
6407:
6385:
6347:
6317:
6287:
6260:(Pt 3): 382–5,
6249:
6244:
6208:
6187:
6162:
6125:
6097:
6092:
6074:Springer-Verlag
6065:
6044:
6033:
6011:
5972:
5926:
5902:
5889:
5872:
5826:
5784:
5752:
5748:
5738:
5736:
5732:
5731:
5727:
5693:
5692:
5688:
5656:
5651:
5650:
5646:
5633:
5632:
5628:
5618:
5617:
5613:
5595:
5594:
5590:
5576:
5575:
5571:
5565:Fedorov (1891a)
5563:
5559:
5539:
5538:
5534:
5528:Fedorov (1891b)
5526:
5522:
5513:
5511:
5496:10.2307/2322930
5490:(10): 765–779.
5475:
5474:
5470:
5466:
5449:
5440:Bravais lattice
5401:
5397:
5395:
5391:
5387:
5383:
5379:
5377:
5373:
5369:
5365:
5361:
5349:
5340:
5328:
5324:
5320:
5318:
5314:
5310:
5306:
5294:
5285:
5276:
5272:
5268:
5264:
5262:
5260:
5256:
5254:
5227:
5223:
5219:
5215:
5211:
5207:
5203:
5191:
5183:
5173:
5169:
5165:
5142:
5136:
5130:
5128:
5116:
5112:
5098:
5081:
5077:
5073:
5069:
5057:
5048:
5039:
5035:
5021:
5006:
5002:
4998:
4994:
4990:
4976:
4961:
4947:
4931:
4919:
4911:
4903:
4899:
4895:
4891:
4887:
4873:
4859:
4857:
4843:
4839:
4837:
4833:
4829:
4825:
4821:
4809:
4800:
4791:
4779:
4764:
4762:
4758:
4754:
4750:
4736:
4720:
4716:
4704:
4696:
4687:
4686:
4682:
4668:
4649:
4647:
4635:
4631:
4627:
4625:
4621:
4617:
4613:
4609:
4605:
4601:
4597:
4583:
4566:
4562:
4558:
4554:
4552:
4548:
4544:
4540:
4536:
4534:
4528:
4526:
4520:
4516:
4512:
4500:
4491:
4482:
4478:
4474:
4472:
4468:
4464:
4460:
4446:
4431:
4427:
4425:
4421:
4417:
4413:
4409:
4405:
4401:
4397:
4393:
4389:
4375:
4360:
4356:
4354:
4350:
4336:
4320:
4316:
4304:
4296:
4288:
4284:
4280:
4276:
4262:
4248:
4242:
4240:
4228:
4226:
4224:
4212:
4197:
4195:
4193:
4189:
4187:
4183:
4179:
4175:
4161:
4147:
4143:
4139:
4135:
4131:
4127:
4123:
4119:
4115:
4111:
4097:
4078:
4067:
4065:
4053:
4051:
4048:C2/m, P2/c, P2
4047:
4045:
4031:
4016:
4004:
3989:
3988:
3974:
3955:
3953:
3940:
3928:
3920:
3901:
3887:
3885:
3838:
3836:
3820:
3814:
3777:
3762:
3740:
3725:
3706:
3694:
3679:
3657:
3642:
3628:
3612:
3600:
3585:
3563:
3548:
3534:
3518:
3506:
3491:
3469:
3454:
3440:
3423:
3411:
3396:
3377:
3365:
3350:
3336:
3317:
3302:
3280:
3265:
3251:
3212:
3201:
3185:
3144:
3143:
3118:
3113:
3112:
3075:
3070:
3069:
3033:
3028:
3027:
2991:
2986:
2985:
2943:
2942:
2917:
2912:
2911:
2865:
2864:
2839:
2834:
2833:
2788:
2787:
2762:
2757:
2756:
2711:
2710:
2685:
2680:
2679:
2634:
2633:
2608:
2603:
2602:
2554:
2553:
2528:
2523:
2522:
2477:
2476:
2451:
2446:
2445:
2400:
2399:
2374:
2369:
2368:
2320:
2319:
2294:
2289:
2288:
2243:
2242:
2217:
2212:
2211:
2163:
2162:
2137:
2132:
2131:
2093:
2088:
2079:Souvignier 2006
2075:Palistrant 2012
2030:
2024:
2019:
2018:
1994:
1990:
1978:
1974:
1967:
1963:
1953:
1949:
1939:Fedorov (1891a)
1928:
1924:
1917:enantiomorphous
1913:
1909:
1893:2D space groups
1890:
1886:
1873:
1869:
1864:
1860:
1568:
1491:
1486:
1428:
1420:
1406:Lattice systems
1400:Crystal systems
1388:
1375:
1367:
1353:Crystal classes
1343:
1339:
1332:
1328:
1324:
1317:
1313:
1309:
1302:
1298:
1294:
1290:
1286:
1277:wallpaper group
1254:
1220:
1208:
1204:
1167:
1124:
1116:
1107:
1103:
1099:
1095:
1091:
1063:
1059:
1051:
1033:
1026:
1018:
1006:
1003:
1002:
1001:
994:
991:
990:
989:
982:
979:
978:
977:
972:
843:
838:
834:
822:
785:Bravais lattice
776:
769:
753:
747:
738:
718:
601:is its matrix,
573:
571:General formula
566:
553:
489:Space group no.
429:
428:
409:
408:
389:
388:
369:
368:
349:
348:
341:
325:Auguste Bravais
317:
301:
288:
285:asymmetric unit
250:lattice systems
238:
227:
221:
219:
213:
209:
199:
193:
189:
185:
158:
128:crystallography
115:Euclidean space
113:of an oriented
45:
39:
28:
23:
22:
15:
12:
11:
5:
7247:
7245:
7237:
7236:
7231:
7226:
7221:
7216:
7206:
7205:
7199:
7198:
7196:
7195:
7190:
7185:
7179:
7176:
7175:
7173:
7172:
7169:
7166:
7163:
7158:
7153:
7148:
7142:
7140:
7136:
7135:
7133:
7132:
7127:
7125:Poincaré group
7122:
7117:
7111:
7110:
7106:
7102:
7098:
7094:
7090:
7086:
7082:
7078:
7074:
7070:
7064:
7063:
7057:
7051:
7045:
7039:
7033:
7027:
7020:
7018:
7012:
7011:
7009:
7008:
7003:
6998:
6993:Dihedral group
6990:
6985:
6977:
6973:
6972:
6966:
6960:
6957:
6951:
6947:
6940:
6933:
6926:
6921:
6918:
6912:
6909:
6905:
6899:
6893:
6892:
6889:
6883:
6880:
6874:
6868:
6866:
6860:
6859:
6857:
6856:
6851:
6846:
6841:
6836:
6834:Symmetry group
6831:
6826:
6821:
6819:Infinite group
6816:
6811:
6809:Abelian groups
6806:
6800:
6798:
6794:
6793:
6791:
6790:
6785:
6783:direct product
6775:
6770:
6768:Quotient group
6765:
6760:
6755:
6749:
6747:
6741:
6740:
6735:
6733:
6732:
6725:
6718:
6710:
6704:
6703:
6698:
6693:
6680:
6668:
6663:
6658:
6653:
6648:
6641:
6629:
6622:
6621:External links
6619:
6617:
6616:
6565:
6547:
6501:
6484:(3): 210–220,
6464:
6453:
6420:(3): 407–411,
6405:
6383:
6358:(4): 471–477,
6345:
6315:
6285:
6242:
6206:
6185:
6160:
6123:
6106:(4): 517–525,
6095:
6090:
6063:
6042:
6041:
6040:
6009:
5992:(2): 475–507,
5970:
5937:(3): 235–246,
5924:
5900:
5887:
5870:
5845:(3): 400–412,
5824:
5799:(3): 297–336,
5782:
5749:
5747:
5746:
5725:
5706:(5): 647–650.
5686:
5644:
5626:
5611:
5588:
5569:
5557:
5532:
5520:
5467:
5465:
5462:
5461:
5460:
5457:
5453:
5448:
5445:
5406:
5405:
5358:
5355:
5353:
5350:
5347:
5344:
5337:
5333:
5332:
5303:
5300:
5298:
5295:
5292:
5289:
5283:
5279:
5278:
5274:
5270:
5266:
5258:
5252:
5249:
5246:
5244:
5241:
5238:
5235:
5231:
5230:
5200:
5197:
5195:
5192:
5189:
5186:
5180:
5176:
5175:
5171:
5167:
5162:
5159:
5157:
5154:
5151:
5148:
5123:
5119:
5118:
5114:
5110:
5107:
5104:
5102:
5099:
5096:
5093:
5090:
5086:
5085:
5066:
5063:
5061:
5058:
5055:
5052:
5046:
5042:
5041:
5037:
5033:
5032:P6mm, P6cc, P6
5030:
5027:
5025:
5022:
5019:
5016:
5013:
5009:
5008:
5004:
5000:
4996:
4992:
4988:
4985:
4982:
4980:
4977:
4974:
4971:
4968:
4964:
4963:
4959:
4956:
4953:
4951:
4948:
4945:
4942:
4939:
4935:
4934:
4928:
4925:
4923:
4920:
4917:
4914:
4909:
4905:
4904:
4901:
4897:
4893:
4889:
4885:
4882:
4879:
4877:
4874:
4871:
4868:
4865:
4852:
4848:
4847:
4818:
4815:
4813:
4810:
4807:
4804:
4798:
4794:
4793:
4788:
4785:
4783:
4780:
4777:
4774:
4771:
4767:
4766:
4760:
4756:
4752:
4748:
4747:P312, P321, P3
4745:
4742:
4740:
4737:
4734:
4731:
4728:
4724:
4723:
4713:
4710:
4708:
4705:
4702:
4699:
4694:
4690:
4689:
4684:
4680:
4677:
4674:
4672:
4669:
4666:
4663:
4660:
4642:
4638:
4637:
4633:
4629:
4623:
4619:
4615:
4611:
4607:
4603:
4599:
4595:
4592:
4589:
4587:
4584:
4581:
4578:
4575:
4571:
4570:
4532:
4524:
4509:
4506:
4504:
4501:
4498:
4495:
4489:
4485:
4484:
4480:
4476:
4475:I4mm, I4cm, I4
4470:
4466:
4462:
4458:
4457:P4mm, P4bm, P4
4455:
4452:
4450:
4447:
4444:
4441:
4438:
4434:
4433:
4429:
4423:
4419:
4415:
4411:
4407:
4403:
4399:
4395:
4391:
4387:
4384:
4381:
4379:
4376:
4373:
4370:
4367:
4363:
4362:
4358:
4352:
4348:
4345:
4342:
4340:
4337:
4334:
4331:
4328:
4324:
4323:
4313:
4310:
4308:
4305:
4302:
4299:
4294:
4290:
4289:
4286:
4282:
4278:
4274:
4271:
4268:
4266:
4263:
4260:
4257:
4254:
4235:
4231:
4230:
4221:
4218:
4216:
4213:
4210:
4207:
4204:
4200:
4199:
4191:
4185:
4181:
4177:
4173:
4170:
4167:
4165:
4162:
4159:
4156:
4153:
4149:
4148:
4145:
4141:
4137:
4133:
4129:
4125:
4121:
4117:
4113:
4109:
4106:
4103:
4101:
4098:
4095:
4092:
4089:
4060:
4056:
4055:
4049:
4043:
4040:
4037:
4035:
4032:
4029:
4026:
4023:
4019:
4018:
4013:
4010:
4008:
4005:
4002:
3999:
3996:
3992:
3991:
3986:
3983:
3980:
3978:
3975:
3972:
3969:
3966:
3948:
3944:
3943:
3937:
3934:
3932:
3929:
3926:
3923:
3918:
3914:
3913:
3910:
3907:
3905:
3902:
3899:
3896:
3893:
3880:
3876:
3875:
3870:
3865:
3860:
3855:
3849:
3848:
3845:
3840:
3833:Crystal system
3830:
3813:
3810:
3809:
3808:
3805:
3802:
3799:
3790:
3789:
3786:
3779:
3774:
3771:
3768:
3766:
3763:
3760:
3757:
3753:
3752:
3749:
3742:
3737:
3734:
3731:
3729:
3726:
3723:
3720:
3716:
3715:
3708:
3703:
3696:
3691:
3688:
3685:
3683:
3680:
3677:
3674:
3670:
3669:
3666:
3659:
3654:
3651:
3648:
3646:
3643:
3640:
3637:
3634:
3622:
3621:
3614:
3609:
3602:
3597:
3594:
3591:
3589:
3586:
3583:
3580:
3576:
3575:
3572:
3565:
3560:
3557:
3554:
3552:
3549:
3546:
3543:
3540:
3528:
3527:
3520:
3515:
3508:
3503:
3500:
3497:
3495:
3492:
3489:
3486:
3482:
3481:
3478:
3471:
3466:
3463:
3460:
3458:
3455:
3452:
3449:
3446:
3433:
3432:
3425:
3420:
3413:
3408:
3405:
3402:
3400:
3397:
3394:
3391:
3387:
3386:
3379:
3374:
3367:
3362:
3359:
3356:
3354:
3351:
3348:
3345:
3342:
3330:
3329:
3326:
3319:
3314:
3311:
3308:
3306:
3303:
3300:
3297:
3293:
3292:
3289:
3282:
3277:
3274:
3271:
3269:
3266:
3263:
3260:
3257:
3245:
3244:
3239:
3234:
3229:
3224:
3218:
3217:
3214:
3209:
3203:
3198:Crystal system
3184:
3181:
3178:
3177:
3174:
3161:
3156:
3152:
3141:
3138:
3125:
3121:
3110:
3107:
3103:
3102:
3100:
3098:
3095:
3082:
3078:
3067:
3065:
3061:
3060:
3058:
3056:
3053:
3040:
3036:
3025:
3023:
3019:
3018:
3016:
3014:
3011:
2998:
2994:
2983:
2981:
2977:
2976:
2973:
2960:
2955:
2951:
2940:
2937:
2924:
2920:
2909:
2906:
2903:
2899:
2898:
2895:
2882:
2877:
2873:
2862:
2859:
2846:
2842:
2831:
2826:
2822:
2821:
2818:
2805:
2800:
2796:
2785:
2782:
2769:
2765:
2754:
2749:
2745:
2744:
2741:
2728:
2723:
2719:
2708:
2705:
2692:
2688:
2677:
2672:
2668:
2667:
2664:
2651:
2646:
2642:
2631:
2628:
2615:
2611:
2600:
2595:
2592:
2588:
2587:
2584:
2571:
2566:
2562:
2551:
2548:
2535:
2531:
2520:
2515:
2511:
2510:
2507:
2494:
2489:
2485:
2474:
2471:
2458:
2454:
2443:
2438:
2434:
2433:
2430:
2417:
2412:
2408:
2397:
2394:
2381:
2377:
2366:
2361:
2358:
2354:
2353:
2350:
2337:
2332:
2328:
2317:
2314:
2301:
2297:
2286:
2281:
2277:
2276:
2273:
2260:
2255:
2251:
2240:
2237:
2224:
2220:
2209:
2204:
2201:
2197:
2196:
2193:
2180:
2175:
2171:
2160:
2157:
2144:
2140:
2129:
2126:
2123:
2119:
2118:
2115:
2112:
2109:
2106:
2102:
2101:
2098:
2095:
2090:
2026:Main article:
2023:
2020:
2017:
2016:
1988:
1972:
1968:227 + 44 = 271
1947:
1926:
1922:
1907:
1884:
1867:
1857:
1856:
1853:
1852:
1849:
1848:28927915 (+?)
1846:
1843:
1840:
1837:
1834:
1831:
1828:
1824:
1823:
1820:
1817:
1814:
1811:
1808:
1805:
1802:
1799:
1795:
1794:
1791:
1788:
1785:
1782:
1779:
1776:
1773:
1770:
1766:
1765:
1762:
1759:
1756:
1753:
1750:
1747:
1744:
1741:
1737:
1736:
1733:
1730:
1727:
1724:
1721:
1718:
1715:
1712:
1708:
1707:
1704:
1701:
1698:
1695:
1692:
1689:
1686:
1683:
1679:
1678:
1675:
1672:
1669:
1666:
1663:
1660:
1657:
1654:
1650:
1649:
1640:
1631:
1622:
1613:
1604:
1595:
1586:
1577:
1567:
1564:
1490:
1487:
1485:
1482:
1449:
1448:
1443:
1442:
1435:
1434:
1426:
1418:
1415:
1410:
1409:
1403:
1396:
1395:
1386:
1381:
1373:
1365:
1360:
1359:
1356:
1348:
1347:
1346:
1345:
1341:
1337:
1334:
1330:
1326:
1322:
1319:
1315:
1311:
1307:
1304:
1300:
1296:
1292:
1288:
1284:
1252:
1247:
1246:
1242:
1241:
1236:
1235:
1231:
1230:
1218:
1211:Sohncke groups
1206:
1202:
1199:Symmetry group
1178:
1177:
1166:
1163:
1162:
1161:
1154:
1149:
1146:Coxeter groups
1142:
1136:
1125:
1119:
1117:
1111:
1109:
1105:
1101:
1097:
1093:
1089:
1061:
1057:
1049:
1034:
1029:
1027:
1021:
1019:
1013:
1011:
1010:
1004:
992:
980:
970:
963:
958:
954:
950:
947:
946:
944:
942:
940:
938:
935:
933:
930:
926:
925:
923:
920:
917:
914:
911:
909:
906:
902:
901:
898:
895:
892:
889:
886:
883:
880:
876:
875:
872:
869:
866:
863:
860:
857:
854:
841:
836:
832:
825:crystal system
820:
777:
772:
770:
767:
765:
764:
760:
746:
743:
737:
734:
730:enantiomorphic
717:
714:
713:
712:
709:
703:
693:
687:
677:
613:. In general,
595:
594:
572:
569:
564:
552:
549:
546:
545:
542:
539:
536:
533:
530:
526:
525:
522:
519:
516:
513:
510:
506:
505:
502:
499:
496:
493:
490:
436:
416:
396:
376:
356:
340:
337:
316:
313:
300:
297:
293:NaCl structure
237:
234:
225:
217:
197:
178:Evgraf Fedorov
157:
154:
84:symmetry group
43:
37:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
7246:
7235:
7232:
7230:
7227:
7225:
7224:Finite groups
7222:
7220:
7217:
7215:
7212:
7211:
7209:
7194:
7191:
7189:
7186:
7184:
7181:
7180:
7177:
7170:
7167:
7164:
7162:
7161:Quantum group
7159:
7157:
7154:
7152:
7149:
7147:
7144:
7143:
7141:
7137:
7131:
7128:
7126:
7123:
7121:
7120:Lorentz group
7118:
7116:
7113:
7112:
7109:
7103:
7101:
7095:
7093:
7087:
7085:
7079:
7077:
7071:
7069:
7066:
7065:
7061:
7058:
7055:
7052:
7049:
7048:Unitary group
7046:
7043:
7040:
7037:
7034:
7031:
7028:
7025:
7022:
7021:
7019:
7017:
7013:
7007:
7004:
7001:
6997:
6994:
6991:
6988:
6984:
6981:
6978:
6975:
6974:
6970:
6969:Monster group
6967:
6964:
6961:
6955:
6954:Fischer group
6952:
6950:
6943:
6936:
6929:
6923:Janko groups
6922:
6916:
6913:
6903:
6902:Mathieu group
6900:
6898:
6895:
6894:
6887:
6884:
6878:
6875:
6873:
6870:
6869:
6867:
6865:
6861:
6855:
6854:Trivial group
6852:
6850:
6847:
6845:
6842:
6840:
6837:
6835:
6832:
6830:
6827:
6825:
6824:Simple groups
6822:
6820:
6817:
6815:
6814:Cyclic groups
6812:
6810:
6807:
6805:
6804:Finite groups
6802:
6801:
6799:
6795:
6789:
6786:
6784:
6780:
6776:
6774:
6771:
6769:
6766:
6764:
6761:
6759:
6756:
6754:
6751:
6750:
6748:
6746:
6745:Basic notions
6742:
6738:
6731:
6726:
6724:
6719:
6717:
6712:
6711:
6708:
6702:
6699:
6697:
6694:
6688:
6687:
6681:
6679:
6675:
6672:
6669:
6667:
6664:
6662:
6659:
6657:
6654:
6652:
6649:
6647:
6644:
6642:
6640:
6636:
6633:
6630:
6628:
6625:
6624:
6620:
6614:
6610:
6606:
6602:
6598:
6594:
6590:
6586:
6582:
6578:
6574:
6570:
6566:
6563:
6559:
6558:
6553:
6548:
6545:
6541:
6536:
6531:
6527:
6523:
6519:
6515:
6511:
6507:
6502:
6499:
6495:
6491:
6487:
6483:
6479:
6478:
6470:
6465:
6462:
6458:
6454:
6451:
6447:
6443:
6439:
6435:
6431:
6427:
6423:
6419:
6415:
6411:
6406:
6402:
6397:
6393:
6389:
6384:
6381:
6377:
6373:
6369:
6365:
6361:
6357:
6353:
6352:
6346:
6342:
6337:
6333:
6329:
6325:
6321:
6316:
6313:
6309:
6304:
6299:
6296:(Pt 3): 301,
6295:
6291:
6286:
6283:
6279:
6275:
6271:
6267:
6263:
6259:
6255:
6248:
6243:
6240:
6236:
6232:
6228:
6224:
6220:
6216:
6212:
6207:
6204:
6200:
6196:
6192:
6188:
6182:
6178:
6174:
6170:
6166:
6161:
6158:
6154:
6149:
6144:
6140:
6136:
6132:
6128:
6124:
6121:
6117:
6113:
6109:
6105:
6101:
6096:
6093:
6087:
6083:
6079:
6075:
6071:
6070:
6064:
6060:
6056:
6052:
6048:
6043:
6037:
6031:
6030:
6027:
6023:
6019:
6015:
6010:
6007:
6003:
5999:
5995:
5991:
5987:
5983:
5979:
5975:
5971:
5968:
5964:
5960:
5956:
5952:
5948:
5944:
5940:
5936:
5932:
5931:
5925:
5922:
5918:
5914:
5912:
5906:
5901:
5898:
5894:
5890:
5884:
5880:
5876:
5871:
5868:
5864:
5860:
5856:
5852:
5848:
5844:
5840:
5839:
5834:
5830:
5825:
5822:
5818:
5814:
5810:
5806:
5802:
5798:
5794:
5793:
5788:
5783:
5780:
5776:
5772:
5768:
5764:
5760:
5756:
5751:
5750:
5735:
5729:
5726:
5721:
5717:
5713:
5709:
5705:
5701:
5697:
5690:
5687:
5682:
5678:
5674:
5670:
5667:(2): 023514.
5666:
5662:
5655:
5648:
5645:
5640:
5636:
5630:
5627:
5622:
5615:
5612:
5607:
5604:(in German).
5603:
5599:
5592:
5589:
5584:
5580:
5573:
5570:
5566:
5561:
5558:
5553:
5549:
5545:
5544:
5536:
5533:
5529:
5524:
5521:
5510:on 2022-09-29
5509:
5505:
5501:
5497:
5493:
5489:
5485:
5484:
5479:
5472:
5469:
5463:
5458:
5454:
5451:
5450:
5446:
5444:
5441:
5436:
5434:
5430:
5424:
5422:
5418:
5413:
5359:
5356:
5354:
5351:
5345:
5338:
5335:
5334:
5304:
5301:
5299:
5296:
5290:
5284:
5281:
5280:
5250:
5247:
5245:
5242:
5239:
5236:
5233:
5232:
5201:
5198:
5196:
5193:
5187:
5181:
5178:
5177:
5164:P23, F23, I23
5163:
5160:
5158:
5155:
5152:
5149:
5146:
5140:
5134:
5127:
5121:
5120:
5108:
5105:
5103:
5100:
5094:
5091:
5088:
5087:
5067:
5064:
5062:
5059:
5053:
5047:
5044:
5043:
5031:
5028:
5026:
5023:
5017:
5014:
5011:
5010:
4986:
4983:
4981:
4978:
4972:
4969:
4966:
4965:
4957:
4954:
4952:
4949:
4943:
4940:
4937:
4936:
4929:
4926:
4924:
4921:
4915:
4910:
4907:
4906:
4883:
4880:
4878:
4875:
4869:
4866:
4863:
4856:
4850:
4849:
4819:
4816:
4814:
4811:
4805:
4799:
4796:
4789:
4786:
4784:
4781:
4775:
4772:
4769:
4768:
4746:
4743:
4741:
4738:
4732:
4729:
4726:
4725:
4714:
4711:
4709:
4706:
4700:
4695:
4692:
4691:
4678:
4675:
4673:
4670:
4664:
4661:
4658:
4653:
4646:
4640:
4593:
4590:
4588:
4585:
4579:
4576:
4573:
4572:
4510:
4507:
4505:
4502:
4496:
4490:
4487:
4486:
4456:
4453:
4451:
4448:
4442:
4439:
4436:
4435:
4385:
4382:
4380:
4377:
4371:
4368:
4365:
4364:
4346:
4343:
4341:
4338:
4332:
4329:
4326:
4325:
4314:
4311:
4309:
4306:
4300:
4295:
4292:
4291:
4272:
4269:
4267:
4264:
4258:
4255:
4252:
4246:
4239:
4233:
4232:
4222:
4219:
4217:
4214:
4208:
4205:
4202:
4201:
4171:
4168:
4166:
4163:
4157:
4154:
4151:
4150:
4107:
4104:
4102:
4099:
4093:
4090:
4087:
4082:
4076:
4071:
4064:
4058:
4057:
4041:
4038:
4036:
4033:
4027:
4024:
4021:
4020:
4014:
4011:
4009:
4006:
4000:
3997:
3994:
3993:
3984:
3981:
3979:
3976:
3970:
3967:
3964:
3959:
3952:
3946:
3945:
3938:
3935:
3933:
3930:
3924:
3919:
3916:
3915:
3911:
3908:
3906:
3903:
3897:
3894:
3891:
3884:
3878:
3877:
3874:
3871:
3869:
3866:
3864:
3861:
3859:
3856:
3854:
3851:
3850:
3844:
3834:
3829:
3823:
3819:
3811:
3806:
3803:
3800:
3797:
3796:
3795:
3784:
3780:
3775:
3772:
3769:
3767:
3764:
3758:
3755:
3747:
3743:
3738:
3735:
3732:
3730:
3727:
3721:
3718:
3713:
3709:
3704:
3701:
3697:
3692:
3689:
3686:
3684:
3681:
3675:
3672:
3664:
3660:
3655:
3652:
3649:
3647:
3644:
3638:
3635:
3632:
3627:
3619:
3615:
3610:
3607:
3603:
3598:
3595:
3592:
3590:
3587:
3581:
3578:
3570:
3566:
3561:
3558:
3555:
3553:
3550:
3544:
3541:
3538:
3533:
3525:
3521:
3516:
3513:
3509:
3504:
3501:
3498:
3496:
3493:
3487:
3484:
3476:
3472:
3467:
3464:
3461:
3459:
3456:
3450:
3447:
3444:
3439:
3430:
3426:
3421:
3418:
3414:
3409:
3406:
3403:
3401:
3398:
3392:
3389:
3384:
3380:
3375:
3372:
3368:
3363:
3360:
3357:
3355:
3352:
3346:
3343:
3340:
3335:
3324:
3320:
3315:
3312:
3309:
3307:
3304:
3298:
3295:
3287:
3283:
3278:
3275:
3272:
3270:
3267:
3261:
3258:
3255:
3250:
3243:
3240:
3238:
3235:
3233:
3230:
3228:
3225:
3223:
3220:
3208:
3199:
3195:
3192:
3190:
3187:Table of the
3182:
3175:
3159:
3154:
3150:
3142:
3139:
3123:
3119:
3111:
3108:
3105:
3104:
3101:
3099:
3096:
3080:
3076:
3068:
3066:
3063:
3062:
3059:
3057:
3054:
3038:
3034:
3026:
3024:
3021:
3020:
3017:
3015:
3012:
2996:
2992:
2984:
2982:
2979:
2978:
2974:
2958:
2953:
2949:
2941:
2938:
2922:
2918:
2910:
2907:
2904:
2900:
2896:
2880:
2875:
2871:
2863:
2860:
2844:
2840:
2832:
2830:
2827:
2824:
2823:
2819:
2803:
2798:
2794:
2786:
2783:
2767:
2763:
2755:
2753:
2750:
2747:
2746:
2742:
2726:
2721:
2717:
2709:
2706:
2690:
2686:
2678:
2676:
2673:
2670:
2669:
2665:
2649:
2644:
2640:
2632:
2629:
2613:
2609:
2601:
2599:
2596:
2593:
2589:
2585:
2569:
2564:
2560:
2552:
2549:
2533:
2529:
2521:
2519:
2516:
2513:
2512:
2508:
2492:
2487:
2483:
2475:
2472:
2456:
2452:
2444:
2442:
2441:Frieze groups
2439:
2436:
2435:
2431:
2415:
2410:
2406:
2398:
2395:
2379:
2375:
2367:
2365:
2362:
2359:
2355:
2351:
2335:
2330:
2326:
2318:
2315:
2299:
2295:
2287:
2285:
2282:
2279:
2278:
2274:
2258:
2253:
2249:
2241:
2238:
2222:
2218:
2210:
2208:
2205:
2202:
2198:
2194:
2178:
2173:
2169:
2161:
2158:
2142:
2138:
2130:
2127:
2124:
2121:
2120:
2116:
2113:
2110:
2107:
2104:
2103:
2085:
2082:
2080:
2076:
2072:
2068:
2064:
2060:
2056:
2052:
2048:
2044:
2040:
2035:
2029:
2021:
2013:
2009:
2005:
2001:
1997:
1992:
1989:
1985:
1981:
1976:
1973:
1961:
1957:
1951:
1948:
1944:
1940:
1936:
1935:Barlow (1894)
1932:
1929:12). Usually
1920:
1918:
1911:
1908:
1904:
1900:
1899:
1894:
1888:
1885:
1881:
1877:
1871:
1868:
1865:Trivial group
1862:
1859:
1850:
1847:
1844:
1841:
1838:
1835:
1832:
1829:
1826:
1825:
1821:
1819:222018 (+79)
1818:
1815:
1812:
1809:
1806:
1803:
1800:
1797:
1796:
1792:
1789:
1786:
1783:
1780:
1777:
1774:
1771:
1768:
1767:
1763:
1760:
1757:
1754:
1751:
1748:
1745:
1742:
1739:
1738:
1734:
1731:
1728:
1725:
1722:
1719:
1716:
1713:
1710:
1709:
1705:
1702:
1699:
1696:
1693:
1690:
1687:
1684:
1681:
1680:
1676:
1673:
1670:
1667:
1664:
1661:
1658:
1655:
1652:
1651:
1648:
1641:
1639:
1632:
1630:
1623:
1621:
1614:
1612:
1605:
1603:
1596:
1594:
1587:
1585:
1578:
1575:
1574:
1571:
1565:
1563:
1561:
1555:
1553:
1549:
1545:
1541:
1537:
1533:
1529:
1524:
1520:
1516:
1512:
1508:
1504:
1500:
1496:
1483:
1481:
1479:
1475:
1471:
1467:
1463:
1459:
1455:
1444:
1440:
1436:
1432:
1424:
1416:
1412:
1411:
1407:
1404:
1401:
1398:
1397:
1394:
1392:
1382:
1379:
1371:
1362:
1361:
1357:
1354:
1350:
1349:
1340:: p4m, p4g; D
1335:
1320:
1305:
1282:
1281:
1280:
1278:
1270:
1266:
1262:
1258:
1248:
1243:
1237:
1232:
1228:
1224:
1216:
1215:enantiomorphs
1212:
1200:
1196:
1192:
1188:
1184:
1179:
1174:
1171:
1164:
1159:
1155:
1153:
1150:
1147:
1143:
1141:
1138:
1137:
1134:
1130:
1126:
1122:
1118:
1114:
1110:
1087:
1083:
1079:
1075:
1071:
1067:
1055:
1047:
1043:
1039:
1035:
1032:
1028:
1024:
1020:
1016:
1012:
1000:
988:
976:
969:
964:
962:
959:
955:
953:Hall notation
952:
951:
945:
943:
941:
939:
936:
934:
931:
928:
927:
924:
921:
918:
915:
912:
910:
907:
904:
903:
899:
896:
893:
890:
887:
884:
881:
878:
877:
873:
870:
867:
864:
862:Orthorhombic
861:
858:
855:
852:
851:
848:
830:
826:
818:
814:
810:
806:
802:
798:
794:
790:
786:
782:
778:
775:
771:
766:
761:
758:
757:
756:
752:
744:
742:
735:
733:
731:
726:
723:
715:
710:
708:
704:
702:
698:
694:
692:
688:
686:
685:frieze groups
682:
678:
676:
672:
671:
670:
667:
665:
661:
660:diamond cubic
656:
652:
648:
644:
640:
636:
632:
628:
624:
620:
616:
612:
608:
604:
600:
593:
589:
585:
581:
578:
577:
576:
570:
568:
562:
558:
550:
543:
540:
537:
534:
531:
528:
527:
523:
520:
517:
514:
511:
508:
507:
503:
500:
497:
494:
491:
488:
487:
484:
482:
478:
474:
470:
466:
462:
458:
454:
450:
434:
414:
394:
374:
354:
346:
338:
336:
334:
330:
326:
322:
314:
312:
310:
306:
298:
296:
294:
286:
281:
279:
275:
271:
267:
263:
259:
255:
251:
247:
243:
235:
233:
231:
207:
203:
183:
179:
175:
171:
166:
163:
155:
153:
151:
148:
144:
140:
138:
133:
129:
124:
122:
121:
116:
112:
108:
105:
101:
97:
93:
89:
85:
81:
77:
73:
69:
61:
57:
53:
49:
41:
32:
19:
7188:Applications
7115:Circle group
6999:
6995:
6986:
6982:
6915:Conway group
6877:Cyclic group
6838:
6685:
6580:
6576:
6555:
6509:
6505:
6481:
6475:
6460:
6417:
6413:
6391:
6387:
6355:
6349:
6323:
6319:
6293:
6289:
6257:
6253:
6214:
6210:
6164:
6138:
6134:
6130:
6103:
6099:
6068:
6058:
6054:
6050:
6035:
6025:
6021:
6017:
5989:
5985:
5934:
5928:
5908:
5904:
5878:
5842:
5836:
5796:
5790:
5762:
5758:
5737:. Retrieved
5728:
5703:
5699:
5689:
5664:
5660:
5647:
5638:
5629:
5614:
5605:
5601:
5591:
5582:
5578:
5572:
5560:
5552:B.G. Teubner
5547:
5542:
5535:
5523:
5512:. Retrieved
5508:the original
5487:
5481:
5471:
5437:
5425:
5416:
5411:
5409:
4351:/m, P4/n, P4
4184:, Pba2, Pna2
4180:, Pnc2, Pmn2
4063:Orthorhombic
3793:
3186:
2752:Layer groups
2031:
1991:
1975:
1950:
1930:
1915:
1910:
1903:plane groups
1902:
1896:
1892:
1887:
1870:
1861:
1790:4783 (+111)
1569:
1559:
1556:
1551:
1547:
1544:affine space
1535:
1522:
1514:
1502:
1494:
1492:
1478:cubic groups
1452:
1430:
1422:
1390:
1384:
1377:
1369:
1351:(geometric)
1273:
1264:
1260:
1256:
1168:
1085:
1081:
1077:
1073:
1069:
1065:
1064:compounds, (
1053:
1045:
1041:
1037:
998:
986:
974:
967:
846:
828:
813:point groups
808:
804:
800:
796:
792:
788:
780:
754:
739:
736:Combinations
727:
719:
707:Layer groups
668:
650:
646:
642:
638:
634:
630:
626:
618:
614:
610:
606:
602:
598:
596:
591:
587:
583:
579:
574:
560:
554:
480:
476:
472:
468:
464:
460:
456:
452:
342:
339:Glide planes
333:point groups
318:
315:Translations
307:, including
302:
282:
244:with the 14
239:
167:
159:
146:
135:
131:
125:
118:
79:
65:
59:
55:
51:
50:. The first
47:
6844:Point group
6839:Space group
6583:: 117–141,
6388:Math. Comp.
6127:Janssen, T.
5421:Hahn (2002)
3843:Point group
3438:rectangular
3334:Rectangular
3211:Arithmetic
3207:point group
2071:Litvin 2005
2067:Litvin 2008
2006:. See also
1931:space group
1845:85308 (+?)
1576:Dimensions
1310:: pm, pg; D
1195:orientation
1052:compounds,
865:Tetragonal
859:Monoclinic
697:line groups
681:line groups
675:line groups
655:point group
609:into point
529:Old Symbol
509:New symbol
345:glide plane
278:glide plane
256:(including
150:Hahn (2002)
80:space group
68:mathematics
36:hexagonal H
7208:Categories
7156:Loop group
7016:Lie groups
6788:direct sum
6535:2066/35218
6061:: 345–390.
6028:(2): 1–146
5909:Groups of
5514:2015-01-31
5464:References
4238:Tetragonal
4227:Fmmm, Fddd
4196:Fmm2, Fdd2
4190:Cmm2, Cmc2
4172:Pmm2, Pmc2
4108:P222, P222
3951:Monoclinic
2675:Rod groups
2094:dimension
2089:dimension
1787:710 (+70)
1784:227 (+44)
1761:219 (+11)
1499:Bieberbach
1321:Between: D
1261:symmorphic
1170:one down.
871:Hexagonal
856:Triclinic
701:rod groups
557:screw axis
551:Screw axes
274:screw axis
262:reflection
111:isometries
94:) are the
6613:120651709
6597:0010-2571
6562:EMS Press
6512:: 77–82,
6434:1058-6458
6203:117849701
5998:0138-4821
5967:121994079
5951:0003-9519
5867:119472023
5859:0025-5831
5821:124429194
5813:0025-5831
5779:102301331
5456:rotation)
5410:Note: An
4855:Hexagonal
4792:R3m, R3c
4386:P422, P42
3883:Triclinic
3837:(count),
3626:Hexagonal
3436:Centered
2034:Shubnikov
1925:12 and P3
1919:character
1778:64 (+10)
1466:fibrifold
1160:notation.
1023:Shubnikov
868:Trigonal
716:Chirality
666:applies.
633:), where
254:unit cell
174:chirality
104:cocompact
76:chemistry
7214:Symmetry
6753:Subgroup
6674:Archived
6635:Archived
6571:(1948),
6544:99946564
6498:12714771
6450:40588234
6380:95680790
6312:11961294
6282:15846043
6239:18421131
6157:12388880
5980:(2001),
5877:(1978),
5765:: 1–63,
5608:: 25–75.
5336:221–230
5282:215–220
5257:F432, F4
5251:P432, P4
5234:207–214
5179:200–206
5122:195–199
5113:/mcm, P6
5089:191–194
5045:187–190
5012:183–186
4987:P622, P6
4967:177–182
4958:P6/m, P6
4938:175–176
4851:168–173
4797:162–167
4770:156–161
4727:149–155
4693:147–148
4645:Trigonal
4641:143–146
4632:/amd, I4
4622:/nmc, P4
4618:/mnm, P4
4614:/mbc, P4
4610:/nnm, P4
4606:/nbc, P4
4602:/mcm, P4
4598:/mmc, P4
4574:123–142
4488:111–122
4428:I422, I4
4357:I4/m, I4
4347:P4/m, P4
4285:, I4, I4
4042:P2/m, P2
3863:Orbifold
3690:Between
3502:Between
3465:Between
3232:Orbifold
2092:Lattice
2087:Overall
2059:Kim 1999
1921:(e.g. P3
1775:33 (+7)
1772:23 (+6)
1470:orbifold
1329:: cmm; D
1306:Along: D
1133:Thurston
1080:Alloys,
1017:notation
845:in use.
763:numbers.
745:Notation
329:quotient
266:rotation
236:Elements
220:d, and P
143:symmetry
7183:History
6605:0024424
6514:Bibcode
6442:1795312
6360:Bibcode
6328:Bibcode
6262:Bibcode
6219:Bibcode
6195:1713786
6108:Bibcode
6006:1865535
5959:0220837
5921:0020553
5897:0484179
5708:Bibcode
5669:Bibcode
5504:2322930
4437:99–110
4273:P4, P4
4017:Cm, Cc
3788:
3751:
3668:
3574:
3480:
3412:(*2222)
3328:
3291:
3249:Oblique
2114:Symbol
2108:Symbol
1822:222097
1519:abelian
1336:Both: D
1325:: cm; D
1299:: p4; C
1295:: p3; C
1291:: p2; C
1287:: p1; C
1283:None: C
1104:, and B
1096:, and C
1072:, ...,
1015:Fedorov
732:pairs.
705:(3,2):
689:(2,2):
653:form a
623:lattice
449:diamond
291:m, the
204: (
156:History
137:Fedorov
82:is the
72:physics
6958:22..24
6910:22..24
6906:11..12
6737:Groups
6611:
6603:
6595:
6542:
6496:
6448:
6440:
6432:
6378:
6310:
6280:
6237:
6201:
6193:
6183:
6155:
6088:
6004:
5996:
5965:
5957:
5949:
5919:
5895:
5885:
5865:
5857:
5819:
5811:
5777:
5739:11 May
5502:
5273:32, I4
5269:32, P4
5036:cm, P6
5003:22, P6
4999:22, P6
4995:22, P6
4991:22, P6
4884:P6, P6
4759:12, P3
4755:21, P3
4751:12, P3
4679:P3, P3
4479:md, I4
4469:mc, P4
4461:cm, P4
4418:22, P4
4406:22, P4
4394:22, P4
4366:89–98
4327:83–88
4293:81–82
4234:75–80
4203:47–74
4188:, Pnn2
4152:25–46
4132:, C222
4059:16–24
4022:10–15
4015:Pm, Pc
3985:P2, P2
3858:Schön.
3778:(*632)
3695:(*333)
3601:(*442)
3532:Square
3507:(2*22)
3407:Along
3361:Along
3318:(2222)
3227:Schön.
3213:class
3176:62227
2117:Count
2111:Count
2047:ferri-
2043:ferro-
1891:These
1878:; see
1542:is an
1454:Conway
1333:: p3m1
1318:: p31m
1227:quartz
1221:3 for
1205:and P4
1129:Conway
1048:for AB
1025:symbol
874:Cubic
817:quartz
759:Number
722:chiral
597:where
139:groups
107:groups
100:chiral
7171:Sp(∞)
7168:SU(∞)
7062:Sp(n)
7056:SU(n)
7044:SO(n)
7032:SL(n)
7026:GL(n)
6779:Semi-
6690:(PDF)
6609:S2CID
6540:S2CID
6472:(PDF)
6446:S2CID
6376:S2CID
6250:(PDF)
6199:S2CID
6049:[
6016:[
5963:S2CID
5907:[
5863:S2CID
5817:S2CID
5775:S2CID
5657:(PDF)
5581:[
5546:[
5500:JSTOR
5400:m, Ia
5390:m, Fd
5386:c, Fd
5382:m, Fm
5372:n, Pn
5368:n, Pm
5364:m, Pn
5327:3c, I
5323:3n, F
5313:3m, I
5309:3m, F
5170:3, I2
5126:Cubic
5117:/mmc
5092:6/mmm
5080:2m, P
5076:c2, P
5072:m2, P
4832:m1, P
4828:1c, P
4824:1m, P
4636:/acd
4577:4/mmm
4565:2m, I
4561:c2, I
4557:m2, I
4547:b2, P
4543:c2, P
4539:m2, P
4519:2c, P
4515:2m, P
4414:2, P4
4402:2, P4
4390:2, P4
4120:2, P2
4054:C2/c
3853:Int'l
3773:Both
3765:(*66)
3741:(632)
3736:None
3707:(3*3)
3682:(*33)
3658:(333)
3653:None
3613:(4*2)
3596:Both
3588:(*44)
3564:(442)
3559:None
3519:(22×)
3494:(*22)
3424:(22*)
3399:(*22)
3313:None
3276:None
3222:Int'l
3140:4894
3097:1594
3055:1091
2975:1202
2897:1651
2105:Name
1842:7103
1839:1594
1816:6079
1793:4894
1344:: p6m
1265:split
1187:up to
1056:for A
819:is P3
544:Ccca
524:Ccce
387:, or
212:2d, P
42:is P6
40:O ice
7165:O(∞)
7050:U(n)
7038:O(n)
6919:1..3
6593:ISSN
6494:PMID
6430:ISSN
6308:PMID
6278:PMID
6235:PMID
6181:ISBN
6153:PMID
6086:ISBN
5994:ISSN
5947:ISSN
5883:ISBN
5855:ISSN
5809:ISSN
5741:2015
5438:The
5352:*432
5297:*332
5263:I432
5226:, Ia
5222:, Pa
5218:, Im
5214:, Fd
5210:, Fm
5206:, Pn
5129:(36)
5101:*226
5060:*223
4908:174
4900:, P6
4896:, P6
4892:, P6
4888:, P6
4858:(27)
4842:m, R
4765:R32
4683:, P3
4648:(25)
4626:/ncm
4586:*224
4535:c, P
4527:m, P
4281:, P4
4277:, P4
4241:(68)
4215:*222
4112:, P2
4066:(59)
3995:6–9
3954:(13)
3947:3–5
3873:Ord.
3868:Cox.
3728:(66)
3705:p31m
3693:p3m1
3645:(33)
3551:(44)
3470:(*×)
3378:(××)
3366:(**)
3305:(22)
3242:Ord.
3237:Cox.
3013:343
2939:271
2861:230
2820:528
2743:394
2666:122
2069:), (
1956:1978
1941:and
1836:841
1833:251
1813:955
1810:239
1807:189
1781:118
1764:230
1644:OEIS
1635:OEIS
1626:OEIS
1617:OEIS
1608:OEIS
1599:OEIS
1590:OEIS
1581:OEIS
1511:1912
1507:1911
1458:2001
1303:: p6
1263:(or
1223:FeSi
1131:and
1123:(3D)
1115:(2D)
625:) +
541:Cmma
538:Cmca
535:Aba2
532:Abm2
521:Cmme
518:Cmce
515:Aea2
512:Aem2
453:i.e.
321:rank
276:and
268:and
206:1894
78:, a
74:and
6585:doi
6530:hdl
6522:doi
6510:221
6486:doi
6422:doi
6396:doi
6368:doi
6336:doi
6298:doi
6270:doi
6227:doi
6173:doi
6143:doi
6116:doi
6078:doi
5939:doi
5847:doi
5801:doi
5767:doi
5716:doi
5677:doi
5492:doi
5357:48
5331:3d
5302:24
5277:32
5248:24
5243:432
5237:432
5199:24
5194:3*2
5161:12
5156:332
5106:24
5084:2c
5065:12
5040:mc
5029:12
5024:*66
5015:6mm
5007:22
4984:12
4979:226
4970:622
4962:/m
4955:12
4941:6/m
4817:12
4812:2*3
4782:*33
4739:223
4719:, R
4688:R3
4591:16
4569:2d
4503:2*2
4483:cd
4449:*44
4440:4mm
4432:22
4378:224
4369:422
4361:/a
4330:4/m
4319:, I
4206:mmm
4164:*22
4155:mm2
4100:222
4091:222
4025:2/m
4007:*11
3990:C2
3912:P1
3886:(2)
3776:p6m
3770:12
3756:6mm
3611:p4g
3599:p4m
3579:4mm
3517:pgg
3505:cmm
3485:2mm
3457:(*)
3422:pmg
3410:pmm
3390:2mm
3353:(*)
3281:(1)
3268:(1)
2784:80
2707:75
2630:32
2586:80
2550:17
2509:31
2432:31
2396:10
2065:, (
2049:or
1901:or
1830:91
1804:59
1801:32
1758:73
1755:32
1752:18
1749:14
1735:17
1732:17
1729:13
1726:10
1493:In
1380:).
1189:an
1092:, B
807:or
504:68
475:or
467:or
459:or
134:or
126:In
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