John G. Ratcliffe, Steven T. Tschantz
Abstract
In this paper, we develop the theory for classifying all pairs such that is an n-space group and N is a normal subgroup of such that is infinite cyclic or infinite dihedral, up to isomorphism.
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In this paper, we develop the theory for classifying all pairs such that is an n-space group and N is a normal subgroup of such that is infinite cyclic or infinite dihedral, up to isomorphism.
Key concepts: Mathematics, Dihedral group, Isomorphism (crystallography), Extension (predicate logic), Dihedral angle, Combinatorics, Group (periodic table), Space (punctuation)