Generic Idempotent Modules for a Finite Group

  title={Generic Idempotent Modules for a Finite Group},
  author={H. KRAUSEAbstract},
  • H. KRAUSEAbstract
  • Published 1999
Let G be a nite group and k an algebraically closed eld of characteristic p. Let F U be the Rickard idempotent kG-module corresponding to the set U of subvarieties of the cohomology variety VG which are not irreducible components. We show that F U is a nite sum of generic modules corresponding to the irreducible components of VG. In this context, a generic… CONTINUE READING