English

Frobenius Heisenberg categorification

Representation Theory 2020-06-05 v3

Abstract

We associate a graded monoidal supercategory HeisF,k\mathcal{H}\mathit{eis}_{F,k} to every graded Frobenius superalgebra FF and integer kk. These categories, which categorify a broad range of lattice Heisenberg algebras, recover many previously defined Heisenberg categories as special cases. In this way, the categories HeisF,k\mathcal{H}\mathit{eis}_{F,k} serve as a unifying and generalizing framework for Heisenberg categorification. Even in the case of previously defined Heisenberg categories, we obtain new, more efficient, presentations of these categories, based on an approach of Brundan. When k=0k=0, our construction yields new versions of the affine oriented Brauer category depending on a graded Frobenius superalgebra.

Keywords

Cite

@article{arxiv.1802.01626,
  title  = {Frobenius Heisenberg categorification},
  author = {Alistair Savage},
  journal= {arXiv preprint arXiv:1802.01626},
  year   = {2020}
}

Comments

29 pages. v2: Minor corrections. v3: Minor corrections and notation change; published version

R2 v1 2026-06-23T00:11:57.481Z