An ordered set of Nörlund means
نویسندگان
چکیده
منابع مشابه
Convergence Factors for Double Series Summable by Nörlund Means.
In a note' published in volume 21 of these PROCEEDINGS I gave necessary and sufficient conditions for convergence factors in simply infinite series summable by N6rlund means. The purpose of the present note is to furnish analogous results for double series. We are given a doubly infinite set of complex constants cij (i, j = 0, 1, 2, 3, .. .), where coo 0 0 and Zc,ix'y' is convergent for I x I <...
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ژورنال
عنوان ژورنال: International Journal of Mathematics and Mathematical Sciences
سال: 1981
ISSN: 0161-1712,1687-0425
DOI: 10.1155/s0161171281000215