International
Tables for Crystallography Volume D Physical properties of crystals Edited by A. Authier © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. D, ch. 1.1, p. 13
Section 1.1.4.5.2.1. Tensors of rank 2^{a}Institut de Minéralogie et de la Physique des Milieux Condensés, Bâtiment 7, 140 rue de Lourmel, 75015 Paris, France |
A bilinear form is symmetric if Its components satisfy the relations
The associated matrix, T, is therefore equal to its transpose : In a space with n dimensions, the number of independent components is equal to
Examples