Abstract

Suppose that G is a finite solvable group and V is a finite, faithful and completely reducible G-module. Let H be an odd-order subgroup of G, then H has at least two regular orbits on V ⊕ V . Suppose in addition that | V | is odd, then there exists v ∈ V in a regular orbit of F ( G ) ∩ H such that C H ( v ) ⊆ F 2 ( G ) . Let G be a solvable group, H be an odd-order Hall π-subgroup of G, V be a faithful G-module, over possibly different finite fields of odd π-characteristic and assume that V O π ( G ) is completely reducible, then there exists v ∈ V such that C H ( v ) ⊆ O π ( G ) .

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