The 2-blocks of defect 4

Külshammer, Burkhard; Sambale, Benjamin

doi:10.1090/S1088-4165-2013-00433-8

The $2$-blocks of defect $4$
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by Burkhard Külshammer and Benjamin Sambale

Represent. Theory 17 (2013), 226-236

DOI: https://doi.org/10.1090/S1088-4165-2013-00433-8

Published electronically: May 2, 2013

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Abstract:

We show that the major counting conjectures of modular representation theory are satisfied for $2$-blocks of defect at most $4$ except one possible case. In particular, we determine the invariants of such blocks.

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