1Department of Mathematics, Indiana University, Bloomington, IN 474057106, U.S.A. E-mail: rhoades@indiana.edu
2Department of Mathematics, Yüzüncü Yil University, Van, Turkey. E-mail: ekremsavas@yahoo.com
AMS subject classification: 40F05, 40D25.
In this paper necessary and sufficient conditions are obtained for ∑ anλn to be summable, k > 1, whenever ∑ an is (N,p,q) bounded.
Absolute summability factors, infinite series, weighted mean