On paranormed Zweier ideal convergent sequence spaces defined By Orlicz function

In this article we introduce paranorm ideal convergent sequence spaces using Zweier transform and Orlicz function. We study some topological and algebraic properties. Further we prove some inclusion relations related to these new spaces.     

Some double sequence spaces of interval numbers defined by Orlicz function

In this paper we introduce some interval valued double sequence spaces defined by Orlicz function and study different properties of these spaces like inclusion relations, solidity, etc. We establish some inclusion relations among them. Also we introduce the concept of double statistical convergence for interval number sequences and give an inclusion relation between interval valued double sequence spaces.     

An open mapping theorem without continuity and linearity

We establish an open mapping theorem which is independent of continuity and linearity of concerned mappings. This is a substantial improvement of the classical version and its generalizations.