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Questions on group theory which concern finite groups.

3 votes
Accepted

Algorithm for Brauer lifting via Brauer tree?

If I understand correctly, you have a tree with edges labelled by e1,...,en and vertices labelled by v0,...,vn,...v(n+m-1), where the last m >= 1 of these label the same (namely the exceptional) verte …
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6 votes

Parabolic induction GL(n,Zp)

If $P$ is the Borel and $\pi$ is admissible, then $\pi$ is 1-dimensional and let $\Pi$ denote the induction. Let $K(r)$ be the principal congruence subgroup of elements in $GL_n(\mathbb Z_p)$ that are …
fherzig's user avatar
  • 1,388