English

Some graphical aspects of Frobenius structures

Rings and Algebras 2012-03-01 v1

Abstract

We survey some aspects of Frobenius algebras, Frobenius structures and their relation to finite Hopf algebras using graphical calculus. We focus on the `yanking' moves coming from a closed structure in a rigid monoidal category, the topological move, and the `yanking' coming from the Frobenius bilinear form and its inverse, used e.g. in quantum teleportation. We discus how to interpret the associated information flow. Some care is taken to cover non-symmetric Frobenius algebras and the Nakayama automorphism. We review graphically the Larson-Sweedler-Pareigis theorem showing how integrals of finite Hopf algebras allow to construct Frobenius structures. A few pointers to further literature are given, with a subjective tendency to graphically minded work.

Keywords

Cite

@article{arxiv.1202.6380,
  title  = {Some graphical aspects of Frobenius structures},
  author = {Bertfried Fauser},
  journal= {arXiv preprint arXiv:1202.6380},
  year   = {2012}
}

Comments

to appear in `Categorical information flow in physics and linguistics', E. Grefenstette, Ch. Heunen, and M. Sadrzadeh eds

R2 v1 2026-06-21T20:26:35.603Z