A note on vertices of indecomposable tensor products

2019/06/27 by Linckelmann, Markus
#20C20 #FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1906.11599

Abstract

G. Navarro raised the question under what circumstancs two vertices of two indecomposable modules over a finite group algebra generate a Sylow p-subgroup. The present note provides a sufficient criterion for when this is the case. This generalises a result by Navarro for simple modules over finite p-solvable groups, which is the main motivation for this note.

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