“…The Brauer trees for 47-blocks as described in [10] show that we can take j of degree 21296876 when p ¼ 47. Assume that p ¼ 71.…”
Section: Simple Groupsmentioning
confidence: 99%
“…Assume that p ¼ 71. As shown in [10], the Brauer tree of the principal 71-block of G contains an edge connecting 1 G and w A IrrðGÞ, with wð1Þ ¼ 842609326. It follows thatŵ w contains 1 G with multiplicity 1.…”
Section: Simple Groupsmentioning
confidence: 99%
“…For some of them, we can use [14], [15], or [2] to find a desired j. For some others, we will use results of [10] on Brauer trees to find j. We will indicate one possible choice for jð1Þ in what follows.…”
Abstract. Let G be a finite group and p > 2 a prime. We show that a Sylow p-subgroup of G is self-normalizing if and only if G has no non-trivial irreducible p-Brauer character of degree not divisible by p.
“…The Brauer trees for 47-blocks as described in [10] show that we can take j of degree 21296876 when p ¼ 47. Assume that p ¼ 71.…”
Section: Simple Groupsmentioning
confidence: 99%
“…Assume that p ¼ 71. As shown in [10], the Brauer tree of the principal 71-block of G contains an edge connecting 1 G and w A IrrðGÞ, with wð1Þ ¼ 842609326. It follows thatŵ w contains 1 G with multiplicity 1.…”
Section: Simple Groupsmentioning
confidence: 99%
“…For some of them, we can use [14], [15], or [2] to find a desired j. For some others, we will use results of [10] on Brauer trees to find j. We will indicate one possible choice for jð1Þ in what follows.…”
Abstract. Let G be a finite group and p > 2 a prime. We show that a Sylow p-subgroup of G is self-normalizing if and only if G has no non-trivial irreducible p-Brauer character of degree not divisible by p.
Abstract. Let G be a finite group and let k be a field of characteristic p. It is known that a kG-module V carries a non-degenerate G-invariant bilinear form b if and only if V is self-dual. We show that whenever a Morita bimodule M which induces an equivalence between two blocks B(kG) and B(kH) of group algebras kG and kH is self-dual then the correspondence preserves self-duality. Even more, if the bilinear form on M is symmetric then for p odd the correspondence preserves the geometric type of simple modules. In characteristic 2 this holds also true for projective modules.
Using the local subgroup strategy of [3] and [4], we classify the radical subgroups and chains of the Fischer simple group Fi 22 and verify the Alperin weight conjecture and the Uno reductive conjecture for this group; the latter is a refinement of the Dade reductive and Isaacs-Navarro conjectures.
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