
arXiv: 1909.05841
We show that a group is a GVZ-group if and only if it is a flat group. We show that the nilpotence class of a GVZ-group is bounded by the number of distinct degrees of irreducible characters. We also show that certain CM-groups can be characterized as GVZ-groups whose irreducible character values lie in the prime field.
Ordinary representations and characters, characters, Finite nilpotent groups, \(p\)-groups, 20C15, QA1-939, FOS: Mathematics, Group Theory (math.GR), Mathematics - Group Theory, Mathematics, finite groups
Ordinary representations and characters, characters, Finite nilpotent groups, \(p\)-groups, 20C15, QA1-939, FOS: Mathematics, Group Theory (math.GR), Mathematics - Group Theory, Mathematics, finite groups
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