Ali Akbar Bahredar - Department of Mathematics, Faculty of Mathematics,University of Sistan and Baluchestan, Zahedan, Iran
Nader Kouhestani - Department of Mathematics, Faculty of Mathematics,University of Sistan and Baluchestan, Zahedan, Iran

In this article, we introduce the notion of e-right e-left, e-semi and -soft topological semigroups and analyse the relation between them. To do this, we need to deFI ne soft topology and point open soft topology which de ned in subsections 2.1 and 2.2

Soft topological semigroup, △-soft topology, point open soft topology