Savas, E2025-05-102025-05-1020030035-759610.1216/rmjm/1181075476https://doi.org/10.1216/rmjm/1181075476https://hdl.handle.net/20.500.14720/14734The purpose of this paper is to determine the conditions for which Sigmaa(n)lambda(nu) is summable \T\(s) whenever Sigmaa(n) is summable \(N) over bar ,p(n)\(k) where T is a lower triangular matrix with positive entries and row sums one. As special cases we obtain inclusion theorems for pairs of weighted mean matrices.eninfo:eu-repo/semantics/openAccessArticle