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Stability and periodicity in the modular representation theory of symmetric groups

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arxiv 1509.06414 v3 pith:AD3GZWBG submitted 2015-09-21 math.RT

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keywords modulargroupsrepresentationresultresultssymmetrictheoryabelian
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abstract

We study asymptotic properties of the modular representation theory of symmetric groups and investigate modular analogs of stabilization phenomena in characteristic zero. The main results are equivalences of categories between certain abelian subcategories of representations of $S_n$ and $S_m$ for different $n$ and $m$. We apply these results to obtain a structural result for $FI$-modules, and to prove a result conjectured by Deligne in a recent letter to Ostrik.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Semisimplifying categorical Heisenberg actions and periodic equivalences

    math.RT 2025-09 accept novelty 7.0 of 10

    Semisimplification functors give explicit, global, categorical-action-compatible equivalences between certain subcategories of modular representations of symmetric groups S_n and S_{n-p^r}.

  2. Classical interpolation categories

    math.RT 2025-07 conditional novelty 7.0 of 10

    Ultraproduct and oligomorphic-group constructions of interpolation categories for finite classical groups agree, and the categories depend only on a parameter t, with an additional parity label in the orthogonal case.

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