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arXiv · 2010.08329

2-blocks with an abelian defect group and a freely acting cyclic inertial quotient

Cesare Giulio Ardito·Elliot McKernon
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Abstract

We study blocks with an abelian defect group and a cyclic inertial quotient acting freely but not transitively. We prove that when p=2, such blocks are inertial, i.e. basic Morita equivalent to their Brauer correspondent. Together with a result of the second author on Singer cycle actions on homocyclic defect groups, this completes the classification of 2-blocks with a cyclic inertial quotient acting freely on an abelian defect group.

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BibTeXRIS

Cesare Giulio Ardito, Elliot McKernon. 2020-10-16. 2-blocks with an abelian defect group and a freely acting cyclic inertial quotient. https://arxiv.org/abs/2010.08329

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