A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
The paper gives description of regular elements of the semigroup BX(D) which are defined by semilattices of the class Σ2(X, 8), for which intersection the minimal elements is not empty. When X is a finite set, the formulas are derived, by means of which the number of regular elements of the semigroup is calculated. In this case the set of all regular elements is a subsemigroup of the semigroup BX(D) which is defined by semilattices of the class Σ2(X, 8).doi:10.4236/am.2015.614199 fatcat:gycx6lezynby7alo3qi5dfp724