English

On disjunction of equations in the semigroup language with no constants

Algebraic Geometry 2013-06-20 v1 Group Theory

Abstract

A semigroup SS is an equational domain if any finite union of algebraic sets over SS is algebraic. We prove that every nontrivial semigroup in the standard language {}\{\cdot\} is not an equational domain.

Keywords

Cite

@article{arxiv.1306.4543,
  title  = {On disjunction of equations in the semigroup language with no constants},
  author = {Artem N. Shevlyakov},
  journal= {arXiv preprint arXiv:1306.4543},
  year   = {2013}
}