Hopf algebroids and Grothendieck-Verdier duality

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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 structure on both the algebraic and categorical sides of this duality.
Original languageEnglish
Number of pages12
DOIs
Publication statusPublished - 25 Aug 2023

Bibliographical note

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

Keywords

  • math.QA
  • math.CT
  • math.RT
  • 16T05, 16B50, 18M10, 55U30

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