English

Hopf algebroids and Grothendieck-Verdier duality

Quantum Algebra 2024-02-12 v3 Category Theory Representation Theory

Abstract

Grothendieck-Verdier duality is a powerful and ubiquitous structure on monoidal categories, which generalises the notion of rigidity. Hopf algebroids are a generalisation of Hopf algebras, to a non-commutative base ring. Just as the category of finite-dimensional modules over a Hopf algebra inherits rigidity from the category of vector spaces, we show that the category of finite-dimensional modules over a Hopf algebroid with bijective antipode inherits a Grothendieck-Verdier structure from the category of bimodules over its base algebra. We investigate the algebraic and categorical structure of this duality.

Keywords

Cite

@article{arxiv.2308.01029,
  title  = {Hopf algebroids and Grothendieck-Verdier duality},
  author = {Robert Allen},
  journal= {arXiv preprint arXiv:2308.01029},
  year   = {2024}
}

Comments

12 pages, formerly 'The category of finite-dimensional modules over a Hopf algebroid with bijective antipode is Grothendieck-Verdier'