English

On multisemigroups

Group Theory 2017-05-10 v2 Category Theory

Abstract

Motivated by recent appearance of multivalued structures in categorification, tropical geometry and other areas, we study basic properties of abstract multisemigroups. We give many new and old examples and general constructions for multisemigroups. Special attention is paid to simple and nilpotent multisemigroups. We also show that "almost all" randomly chosen multivalued binary operations define multisemigroups.

Keywords

Cite

@article{arxiv.1203.6224,
  title  = {On multisemigroups},
  author = {Ganna Kudryavtseva and Volodymyr Mazorchuk},
  journal= {arXiv preprint arXiv:1203.6224},
  year   = {2017}
}

Comments

revised version 31 pages

R2 v1 2026-06-21T20:41:09.453Z