摘要: Abstract This is an overview of the latest available information about tensorial properties domains in context “homophase bicrystallography”. The description ferroic domain states with tensor parameters replaces structure case a model continuous material. Tables changes for symmetry descents together conversion equations facilitate: (i) distinction from parent state, (ii) between any pair states, (iii) specification switching forces. From these data we can, example, conclude that optical methods can serve non-ferroelastic and be performed by electric field.