English

Avoidable Sets in The Bicyclic Inverse Semigroup

Combinatorics 2007-06-26 v1 Group Theory

Abstract

A subset UU of a set SS with a binary operation is called {\it avoidable} if SS can be partitioned into two subsets AA and BB such that no element of UU can be written as a product of two distinct elements of AA or as the product of two distinct elements of BB. The avoidable sets of the bicyclic inverse semigroup are classified.

Keywords

Cite

@article{arxiv.0706.3535,
  title  = {Avoidable Sets in The Bicyclic Inverse Semigroup},
  author = {Nandor Sieben},
  journal= {arXiv preprint arXiv:0706.3535},
  year   = {2007}
}
R2 v1 2026-06-21T08:41:37.877Z