Feeble semi-Supra Open Soft Sets and Their Applications on Supra Soft Topologies

In this paper, we introduce novel concepts that represent unique contributions to the framework of supra soft topological spaces. First, we define and characterize the notion of feeble semi-supra open soft subsets, establishing their fundamental properties. Through illustrative examples, we demonstrate the relationships between this class of soft subsets and existing generalizations of supra open soft sets. Then, we put forward the concepts of interior, closure, frontier, and accumulation operators induced by the class of feeble semi-supra open soft and semi-closed subsets, deriving their key properties and establishing fundamental relationships through some formulas.