English

The homology of completely simple semigroups

Group Theory 2024-05-13 v1

Abstract

I explicitly compute the Eilenberg-Mac Lane homology of a completely simple semigroup using topological means. I also complete Gray and Pride's investigation into the homological finiteness properties of completely simple semigroups, as well as studying their topological finiteness properties. I give a topological proof of Pride's unpublished homological lower bound for the deficiency of a monoid or semigroup.

Cite

@article{arxiv.2405.06594,
  title  = {The homology of completely simple semigroups},
  author = {Benjamin Steinberg},
  journal= {arXiv preprint arXiv:2405.06594},
  year   = {2024}
}