BP Osilenker, “On multipliers for Fourier series in Sobolev orthogonal polynomials”, Mat. Sb.,
213:8 (2022), 44–82; Sb. Math., 213:8 (2022), 1058–1095 Sbornik: Mathematics RUS ENG�…

In the paper we study the multipliers of Fourier series in polynomials orthogonal in
continuous-discrete Sobolev's spaces. Multiplier Theorem for Fourier-Sobolev series is�…

This book presents a systematic coarse on general orthogonal polynomials and Fourie
series in orthogonal polynomials. It consists of six chapters. Chapter 1 deals in essence with�…

Abstract Contents Chapter I. Introduction Chapter II. The behaviour of orthogonal
polynomials Chapter III. Approximation properties of Fourier series in orthogonal�…

ON LINEAR SUMMABILITY METHODS OF FOURIER SERIES IN POLYNOMIALS ORTHOGONAL
IN A DISCRETE SOBOLEV SPACE Page 1 Siberian Mathematical Journal, Vol. 56, No. 2, pp�…

On the Approximative Properties of Fourier Series in Laguerre–Sobolev Polynomials |
Siberian Mathematical Journal Skip to main content SpringerLink Account Menu Find a journal�…

We establish that the Fourier series in the Sobolev system of polynomials, with, associated
to the Jacobi polynomials converge uniformly on to functions in the Sobolev space, where is�…

SN Poleshchuk, “Weyl multipliers for orthogonal series”, Izv. Vyssh. Uchebn. Zaved. Mat.,
1983, no. 6, 26–32; Soviet Math. (Iz. VUZ), 27:6 (1983), 30–38 Izvestiya Vysshikh Uchebnykh�…

The weight estimates for classical orthogonal polynomials: Open problems Page 1 Integral
Transforms and Special Functions, 1994, Vol. No. 3, pp.239-242 Reprints available directly from�…

Considering the approximation of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym}
\usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs}�…