Necessary conditions for double summability factor theorem
نویسندگان
چکیده
منابع مشابه
Necessary and sufficient conditions for inclusion relations for absolute summability
In this paper we obtain appropriate necessary and sufficient conditions for |N, pn|k summability to imply that of |N,qn|s for 1< k≤ s<∞. As in [6] we make use of a result of Bennett [1], who has obtained necessary and sufficient conditions for a factorable matrix to map lk → ls. A factorable matrix A is one in which each entry ank = bnck. Weighted mean matrices are factorable. It will not be po...
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ژورنال
عنوان ژورنال: Miskolc Mathematical Notes
سال: 2010
ISSN: 1787-2405,1787-2413
DOI: 10.18514/mmn.2010.251