Certain congruences on E-inversive E-semigroups

E-semigrupp

Inom matematiken är en E-semigrupp en semigrupp där idempotenterna bildar en delsemigrupp.

E-semigroup

In the area of mathematics known as semigroup theory, an E-semigroup is a semigroup in which the idempotents form a subsemigroup.

E-dense semigroup

In abstract algebra, an E-dense semigroup (also called an E-inversive semigroup) is a semigroup in which every element a has at least one weak inverse x, meaning that…