Cyclotomic nil-Brauer and Singular Soergel bimodules of type D

Fuente: arXiv
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Main Authors: Bodish, Elijah, Brundan, Jonathan, Elias, Ben
Format: Preprint
Published: 2024
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author Bodish, Elijah
Brundan, Jonathan
Elias, Ben
author_facet Bodish, Elijah
Brundan, Jonathan
Elias, Ben
contents We introduce a new family of monoidal categories which are cyclotomic quotients of the nil-Brauer category. We construct a monoidal functor from the cyclotomic nil-Brauer category to another monoidal category constructed from singular Soergel bimodules of type D. We conjecture that our functor is an equivalence of categories. Although we can prove neither fullness nor faithfulness at this point, we are able to show that the functor induces an isomorphism at the level of Grothendieck rings. We compute these rings and their canonical bases, and give diagrammatic descriptions of the corresponding primitive idempotents.
format Preprint
id arxiv_https___arxiv_org_abs_2410_15167
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Cyclotomic nil-Brauer and Singular Soergel bimodules of type D
Bodish, Elijah
Brundan, Jonathan
Elias, Ben
Representation Theory
17B37, 18N25, 16D20
We introduce a new family of monoidal categories which are cyclotomic quotients of the nil-Brauer category. We construct a monoidal functor from the cyclotomic nil-Brauer category to another monoidal category constructed from singular Soergel bimodules of type D. We conjecture that our functor is an equivalence of categories. Although we can prove neither fullness nor faithfulness at this point, we are able to show that the functor induces an isomorphism at the level of Grothendieck rings. We compute these rings and their canonical bases, and give diagrammatic descriptions of the corresponding primitive idempotents.
title Cyclotomic nil-Brauer and Singular Soergel bimodules of type D
topic Representation Theory
17B37, 18N25, 16D20
url https://arxiv.org/abs/2410.15167