This article is cited in 6 papers

Transformation of Fourier Series by Means of General Monotone Sequences

A. A. Jumabayeva^a, B. V. Simonov<sup>b

a</sup> Eurasian National University named after L.N. Gumilyov
^b Volgograd State Technical University

Abstract: Estimates of the norms and the best approximations of the generalized Liouville–Weyl derivative in the two-dimensional case are obtained.

Keywords: best approximation, best approximation by a two-dimensional angle.

UDC: 517

Received: 01.09.2018
Revised: 08.02.2019

DOI: 10.4213/mzm12203

 English version: Mathematical Notes, 2020, 107:5, 740–758

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