On A New Almost Convergent Sequence Space Defined By The Matrix ∆_u^λ

Abstract

In this study, it is defined almost sequence spaces (̂), 0 (̂) and (̂) as domain of the matrix ∆. Some topological properties of these spaces are investigated and determined −, −duals of aforementioned sequence space. Futhermore, it is characterized the class of matrices ((̂):), ((̂):), (: (̂)) and (: (̂)), where is any given sequence space.