On symmetries of crystals with defects related to a class of solvable groups (S2)


G.P. Parry, School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD, UK.

E-mail: gareth.parry@nottingham.ac.uk


We find the geometrical symmetries of discrete structures which generalize the perfect lattices of crystallography so as to account for the existence of continuous distributions of defects. Copyright © 2012 John Wiley & Sons, Ltd.