γ -Operation in M-Topological Space

In this paper we extend the notions of γ-operation, pre-open msets, α-open msets, semi open msets, b-open msets and β-open msets to M-topological spaces. These types of msets are new classes of multisets. We study the rela- tions between these different types of submsets of M-topological spaces. Also, we study some of their properties and show that these types generalize the notion of open (closed) msets.