Set inner amenability for semigroups
Moslem AMİNİ NİA, Ali Ebadian · Advances in the Theory of Nonlinear Analysis and its Application · 2020
In this paper, we present a new concept of inner amenability for a non-empty arbitrary subset A of discrete semigroup S called A-inner amenablility. This condition is considerably weaker than ordinary inner amenability. Further, we give some equivalent conditions between this version of inner amenability and Flner'scondition.