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摘要
In this paper, we study the degree of approximation of 2 pi-periodic functions of two variables, defined on T-2 = [-pi, pi] x [-pi, pi] and belonging to certain Lipschitz classes, by means of almost Euler summability of their Fourier series. The degree of approximation obtained in this way depends on the modulus of continuity associated with the functions. We also derive some corollaries from our theorems.
- 出版日期2018-4-16
