English

Representations of cyclotomic oriented Brauer categories

Representation Theory 2021-07-06 v2

Abstract

Let AA be the locally unital algebra associated to a cyclotomic oriented Brauer category over an arbitrary algebraically closed field k\Bbbk of characteristic p0p\ge 0. The category of locally finite dimensional representations of AA is used to give the tensor product categorification (in the general sense of Losev and Webster) for an integrable lowest weight with an integrable highest weight representation of the same level for the Lie algebra g\mathfrak g, where g\mathfrak g is a direct sum of copies of sl\mathfrak {sl}_\infty (resp., sl^p \hat{\mathfrak {sl}}_p ) if p=0p=0 (resp., p>0p>0). Such a result was expected in [3] when k=C\Bbbk=\mathbb C and proved previously by Brundan in [2] when the level is 11.

Keywords

Cite

@article{arxiv.2102.06918,
  title  = {Representations of cyclotomic oriented Brauer categories},
  author = {Mengmeng Gao and Hebing Rui and Linliang Song},
  journal= {arXiv preprint arXiv:2102.06918},
  year   = {2021}
}

Comments

22 pages

R2 v1 2026-06-23T23:07:47.668Z