Weight conjectures for fusion systems

R. Kessar, M. Linckelmann, J. Lynd, J. Semeraro

Research output: Contribution to journalArticlepeer-review

Abstract

Many of the conjectures of current interest in the representation theory of finite groups in characteristic p are local-to-global statements, in that they predict consequences for the representations of a finite group G given data about the representations of the p-local subgroups of G. The local structure of a block of a group algebra is encoded in the fusion system of the block together with a compatible family of Külshammer-Puig cohomology classes. Motivated by conjectures in block theory, we state and initiate investigation of a number of seemingly local conjectures for arbitrary triples (S, F, α) consisting of a saturated fusion system F  on a finite p-group S and a compatible family α.
Original languageEnglish
Article number106825
Pages (from-to)1-40
Number of pages40
JournalAdvances in Mathematics
Volume357
DOIs
Publication statusPublished - 2019

Keywords

  • fusion system
  • block
  • finite group

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