Subgroups of crystallographic groups play an important role in many branches of mathematics, physics and crystallography such as representation theory, the theories of phase transitions, manifolds and in the comparative study of crystal structures [14]...
Keywords: Hyperbolic symmetry groups, Hyperbolic triangle groups, Index 2 subgroups of hyperbolic triangle groups, Black and white tilings
09/2007 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag