DA Romano - An. Stiint. Univ. Al. I. Cuza Iasi, Ser. Noua, Mat, 2021 - math.uaic.ro
As a generalization of a semigroup, Sen, in 1981, introduced the concept of Γ-semigroups.
In our paper (DA Romano, Γ-semigroups with apartness. Bull. Allahabad Math. Soc., 34 …