Silvermann-Toeplitz theorem for double sequences and series and its application to Nörlund means in non-archimedean fields
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P.N. Natarajan, V. Srinivasan (2002)
Annales mathématiques Blaise Pascal
Grosjean, Carl C. (1996)
Bulletin of the Belgian Mathematical Society - Simon Stevin
Tuo-Yeong Lee (2011)
Mathematica Bohemica
Several new integrability theorems are proved for multiple cosine or sine series.
Móricz, Ferenc, Stadtmüller, U. (2004)
International Journal of Mathematics and Mathematical Sciences
Camille Jordan (1881)
Bulletin de la Société Mathématique de France
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