1 citations · 1 across the 5 of their papers we have counts for
5 papers
On a Theorem of Knörr
Burkhard Külshammer
Knörr has constructed an ideal, in the center of the p-modular group algebra of a finite group G, whose dimension is the number of p-blocks of defect zero in G/Q; here p is a prime…
Loewy lengths of centers of blocks
Burkhard Külshammer, Benjamin Sambale
Let B be a block of a finite group with respect to an algebraically closed field F of characteristic p>0. In a recent paper, Otokita gave an upper bound for the Loewy length LL(ZB)…
2-blocks with abelian defect groups
Charles W. Eaton, Radha Kessar, Burkhard Külshammer +1
We give a classification, up to Morita equivalence, of 2-blocks of quasi-simple groups with abelian defect groups. As a consequence, we show that Donovan's conjecture holds for ele…
Central idempotents of the bifree and left-free double Burnside ring
Robert Boltje, Burkhard Külshammer
We determine the blocks, i.e., the primitive central idempotents, of the bifree double Burnside ring and the left-free double Burnside ring $B^{\trl}(G,G)$, as well as t…
On 2-blocks with minimal nonabelian defect groups II
Charles Eaton, Burkhard Külshammer, Benjamin Sambale
We determine the structure of 2-blocks with minimal nonabelian defect groups, by making use of the classification of finite simple groups.