Towards higher Frobenius functors for symmetric tensor categories

Fuente: arXiv
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Main Authors: Coulembier, Kevin, Flake, Johannes
Format: Preprint
Published: 2024
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author Coulembier, Kevin
Flake, Johannes
author_facet Coulembier, Kevin
Flake, Johannes
contents We develop theory and examples of monoidal functors on tensor categories in positive characteristic that generalise the Frobenius functor from \cite{Os, EOf, Tann}. The latter has proved to be a powerful tool in the ongoing classification of tensor categories of moderate growth, and we demonstrate the similar potential of the generalisations. More explicitly, we describe a new construction of the generalised Verlinde categories $Ver_{p^n}$ in terms of representation categories of elementary abelian $p$-groups. This leads to families of functors relating to $Ver_{p^n}$ that we conjecture, and partially show, to exhibit the characteristic properties of the Frobenius functor relating to $Ver_p$. In particular, we conjecture some of these functors to detect categories that fibre over $Ver_{p^n}$.
format Preprint
id arxiv_https___arxiv_org_abs_2405_19506
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Towards higher Frobenius functors for symmetric tensor categories
Coulembier, Kevin
Flake, Johannes
Representation Theory
We develop theory and examples of monoidal functors on tensor categories in positive characteristic that generalise the Frobenius functor from \cite{Os, EOf, Tann}. The latter has proved to be a powerful tool in the ongoing classification of tensor categories of moderate growth, and we demonstrate the similar potential of the generalisations. More explicitly, we describe a new construction of the generalised Verlinde categories $Ver_{p^n}$ in terms of representation categories of elementary abelian $p$-groups. This leads to families of functors relating to $Ver_{p^n}$ that we conjecture, and partially show, to exhibit the characteristic properties of the Frobenius functor relating to $Ver_p$. In particular, we conjecture some of these functors to detect categories that fibre over $Ver_{p^n}$.
title Towards higher Frobenius functors for symmetric tensor categories
topic Representation Theory
url https://arxiv.org/abs/2405.19506