Difference between revisions of "Point symmetry"
From Online Dictionary of Crystallography
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Revision as of 16:26, 10 April 2017
Symétrie ponctuelle (Fr). Punktsymmetrie (Ge). Simetria punctual (Sp). Simmetria del sito, simmetria puntuale (It).
Definition
The point symmetry of a position is its site symmetry. The point symmetry, or point group of a lattice is the group of linear mappings (symmetry operations, isometries) that map the vector lattice L onto itself. Those geometric crystal classes to which point symmetries of lattices belong are called holohedries.
See also
- Chapter 3.2 of International Tables of Crystallography, Volume A, 6th edition