Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Categorifying equivariant monoids
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by Daniel Graves;
Proc. Amer. Math. Soc. 152 (2024), 3689-3704
DOI: https://doi.org/10.1090/proc/16832
Published electronically: July 1, 2024

Abstract:

Equivariant monoids are very important objects in many branches of mathematics: they combine the notion of multiplication and the concept of a group action. In this paper we will construct categories which encode the structure borne by monoids with a group action by combining the theory of product and permutation categories (PROPs) and product and braid categories (PROBs) with the theory of crossed simplicial groups. PROPs and PROBs are categories used to encode structures borne by objects in symmetric and braided monoidal categories respectively, whilst crossed simplicial groups are categories which encode a unital, associative multiplication and a compatible group action. We will produce PROPs and PROBs whose categories of algebras are equivalent to the categories of monoids, comonoids and bimonoids with group action using extensions of the symmetric and braid crossed simplicial groups. We will extend this theory to balanced braided monoidal categories using the ribbon braid crossed simplicial group. Finally, we will use the hyperoctahedral crossed simplicial group to encode the structure of an involutive monoid with a compatible group action.
References
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Bibliographic Information
  • Daniel Graves
  • Affiliation: Lifelong Learning Centre, University of Leeds, Woodhouse, Leeds LS2 9JT, United Kingdom
  • MR Author ID: 1402496
  • Email: dan.graves92@gmail.com
  • Received by editor(s): August 11, 2023
  • Received by editor(s) in revised form: February 11, 2024
  • Published electronically: July 1, 2024
  • Communicated by: Julie Bergner
  • © Copyright 2024 by Daniel Graves
  • Journal: Proc. Amer. Math. Soc. 152 (2024), 3689-3704
  • MSC (2020): Primary 18M85, 16T10, 16W22, 18M05, 18M15
  • DOI: https://doi.org/10.1090/proc/16832
  • MathSciNet review: 4781966