Hochschild cohomology of polynomial representations of GL2

Miemietz, Vanessa and Turner, Will (2018) Hochschild cohomology of polynomial representations of GL2. Documenta Mathematica, 23. pp. 117-170. ISSN 1431-0643

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Abstract

We compute the Hochschild cohomology algebras of Ringel-self-dual blocks of polynomial representations of GL2 over an algebraically closed field of characteristic p>2 , that is, of any block whose number of simple modules is a power of p>2. These algebras are finite-dimensional and we provide an explicit description of their bases and multiplications.

Item Type: Article
Faculty \ School: Faculty of Science > School of Mathematics
Depositing User: Pure Connector
Date Deposited: 12 Feb 2018 11:30
Last Modified: 22 Jul 2020 01:59
URI: https://ueaeprints.uea.ac.uk/id/eprint/66272
DOI: 10.25537/dm.2018v23.117-170

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