A Clifford semigroup (sometimes also called "inverse Clifford semigroup") is a completely regular inverse semigroup. It is an inverse semigroup with[1] . Examples of Clifford semigroups are groups and commutative inverse semigroups.

In a Clifford semigroup,[2] .

References edit

  1. ^ Presentations of Semigroups and Inverse Semigroups Archived 2006-10-11 at the Wayback Machine section 4.3 Some Results on Clifford Semigroups (accessed on 14 December 2014)
  2. ^ Algebraic characterizations of inverse semigroups and strongly regular rings theorem 2 (accessed on 14 December 2014)