3 papers
math.RT2008
Real Subpairs and Frobenius-Schur Indicators of Characters in 2-Blocks
John Murray
Let B be a real 2-block of a finite group G. Then B has a real defect class. Let g be an element of such a class. A defect couple of B is (D,E), where E is a Sylow 2-subgroup of th…
math.RT2004
Branching Rules for Specht Modules
Harald Ellers, John Murray
Let n be a positive integer and let Sigma_n be the symmetric group of degree n. Let S^lambda be the Specht module for Sigma_n corresponding to a partition lambda of n, defined over…
math.RT2004
Projective modules and involutions
John Murray
Let G be a finite group, and let Omega:={t\in G\mid t^2=1}. Then Omega is a G-set under conjugation. Let k be an algebraically closed field of characteristic 2. It is shown that ea…