Savaş, E.Rhoades, B.E.2025-05-102025-05-1020071331-434310.7153/mia-10-122-s2.0-33846869923https://doi.org/10.7153/mia-10-12https://hdl.handle.net/20.500.14720/6488We obtain sufficient conditions for the series ∑ ∑ amn, which is absolutely summable of order k by a double triangular matrix method A, to be such that ∑ ∑ amnλmn is absolutely summable of order k by a double triangular matrix B. As corollaries we obtain a number of inclusion theorems.eninfo:eu-repo/semantics/openAccessAbsolute SummabilityCesáro MatrixSummability FactorWeighted Mean MatrixArticle101Q2Q2125149WOS:000256952200015