English

On Examples and Classification of Frobenius Objects in Rel

Category Theory 2022-09-01 v1 Mathematical Physics Algebraic Topology math.MP

Abstract

We give some new examples of Frobenius objects in the category of sets and relations Rel\textbf{Rel}. One example is a groupoid with a twisted counit. Another example is the set of conjugacy classes of a group. We also classify Frobenius objects in Rel\textbf{Rel} with two or three elements, and we compute the associated surface invariants using the partition functions of the corresponding TQFTs.

Keywords

Cite

@article{arxiv.2208.14716,
  title  = {On Examples and Classification of Frobenius Objects in Rel},
  author = {Ivan Contreras and Adele Long and Sophia Marx and Rajan Amit Mehta},
  journal= {arXiv preprint arXiv:2208.14716},
  year   = {2022}
}

Comments

18 pages, 3 figures, 4 tables

R2 v1 2026-06-28T00:27:58.067Z