http://localhost:8080/xmlui/handle/123456789/729 Fri, 27 Mar 2026 08:23:13 GMT 2026-03-27T08:23:13Z http://localhost:8080/xmlui/handle/123456789/788 Title: Convergence of doublecosine series Authors: Singh, K; Modi, K Abstract: In this paper we consider double cosine series whose coefficients form a null sequence of bounded variation of order (p, 0), (0, p) and (p, p) with the weight (jk) p−1 for some p > 1. We study pointwise convergence, uniform convergence and convergence in L r -norm of the series under consideration. In a certain sense our results extend the results of Young [7], Kolmogorov [3] and Móricz [4, 5]. Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/788 2020-01-01T00:00:00Z