Cell 2-representations and categorification at prime roots of unity

Laugwitz, Robert and Miemietz, Vanessa (2020) Cell 2-representations and categorification at prime roots of unity. Advances in Mathematics, 361. ISSN 0001-8708

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Motivated by recent advances in the categorification of quantum groups at prime roots of unity, we develop a theory of 2-representations for 2- categories, enriched with a p-differential, which satisfy finiteness conditions analogous to those of finitary or fiat 2-categories. We construct cell 2-representations in this setup, and consider a class of 2-categories stemming from bimodules over a p-dg category in detail. This class is of particular importance in the categorification of quantum groups, which allows us to apply our results to cyclotomic quotients of the categorifications of small quantum group of type sl2 at prime roots of unity by Elias–Qi [Advances in Mathematics 288 (2016)]. Passing to stable 2-representations gives a way to construct triangulated 2-representations, but our main focus is on working with p-dg enriched 2-representations that should be seen as a p-dg enhancement of these triangulated ones.

Item Type: Article
Uncontrolled Keywords: 2-representation theory,categorification at roots of unity,enriched 2-categories,hopfological algebra,quantum-field theory,simple transitive 2-representations
Faculty \ School: Faculty of Science > School of Mathematics
UEA Research Groups: Faculty of Science > Research Groups > Algebra and Combinatorics
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Depositing User: LivePure Connector
Date Deposited: 29 Nov 2019 02:02
Last Modified: 14 May 2023 00:12
URI: https://ueaeprints.uea.ac.uk/id/eprint/73216
DOI: 10.1016/j.aim.2019.106937


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