On Partial Transformation Semigroups
Yu Shi · Journal of Sichuan Normal University · 1999
In this paper, it is proved that an idempotent seperating homomorphic image of the partial transformation semigroup on a set is a weakly inverse semigroup. Moreover, some counting formulas about the number of R classes, L classes, D classes and idempotents in the partial transformation semigroup on a fimite set are given.