Результаты включают ссылки по запросу crystallographic point groups
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A crystallographic point group is a three dimensional point group whose symmetry operations are compatible with a three dimensional crystallographic lattice. Notation · Schoenflies notation · Isomorphisms |
5 июл. 2022 г. · The division of crystals into 32 distinct point groups, also sometimes called the 32 crystal classes, each having their own distinct symmetry. |
The simplest crystallographic point groups are 1, 2, 3, 4, and 6 all of which possess a single rotation axis only. Likewise the rotary-inversion axes are the ... |
7 апр. 2024 г. · The proper and improper rotations that are compatible with translational periodicity generate 32 crystallographic point groups among the 7 crystal classes. |
| Кристаллографическая точечная группа симметрии |  |
Кристаллографическая точечная группа симметрии — это точечная группа симметрии, которая описывает макросимметрию кристалла. Поскольку в кристаллах допустимы оси только 1, 2, 3, 4 и 6 порядков, из всего бесконечного числа точечных групп симметрии... Википедия
(c) The five trigonal point groups 3, 3, 32, 3m and 3m are treated with two axial systems, 'hexagonal axes' and 'rhombohedral axes'. |
Introduction and definitions. A point group1 is a group of symmetry operations all of which leave at least one point unmoved. |
Each of them correspond to a crystallographic point group isomorphic to 4mm: (i) Determine those point groups by indicating their symbols, symmetry operations ... |
A crystallographic point group is a finite-dimensional group G of rotations and reflections each of which is a symmetry operation of a crystal sending it ... |
Two space groups are in the same crystal class if and only if their point groups, which are subgroups of GLn(Z), are conjugate in the larger group GLn(Q). |
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