Class Two p Groups as Fixed Point Free Automorphism Groups

Author: Berger, Thomas Robert

Year: 1967

Degree: Dissertation (Ph.D.)

Advisor: Dade, Everett C.

Committee Member: Unknown, Unknown

Option: Mathematics

DOI: 10.7907/NYAT-FG53

Abstract

Suppose that AG is a solvable group with normal subgroup G where (|A|, |G|) = 1. Assume that A is a class two odd p group all of whose irreducible representations are isomorphic to subgroups of extra special p groups. If pc ≠ rd + 1 for any c = 1, 2 and any prime r where r2d+1 divides |G| and if CG(A) = 1 then the Fitting length of G is bounded by the power of p dividing |A|.

The theorem is proved by applying a fixed point theorem to a reduction of the Fitting series of G. The fixed point theorem is proved by reducing a minimal counter example. IF R is an extra spec r subgroup of G fixed by A1, a subgroup of A, where A1 centralizes D(R), then all irreducible characters of A1R which are nontrivial on Z(R) are computed. All nonlinear characters of a class two p group are computed.

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