UPPER BOUND FOR MATRIX OPERATOR HAUSDORFF

In this paper, we considere the problem of finding an upper bound for Hausdorff matrix operator from sequence spaces lp(v)(ord(v, p)) into lp(w)(ord(w, p)), and deduce an extension of Hardy inequality on weighted sequence spaces.

کلیدواژه ها:

Convexity ، Banach algebra ، functional equation ، Hahn- Banach theorem