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JOURNALS // Problemy Analiza — Issues of Analysis // Archive

Probl. Anal. Issues Anal., 2021 Volume 10(28), Issue 1, Pages 23–37 (Mi pa314)

Estimates for Sobolev-orthonormal functions and generated by Laguerre functions

R. M. Gadzhimirzaev

Dagestan Federal Research Center of the RAS, 45, M.Gadzhieva st., Makhachkala, 367025, Russia

Abstract: In this paper, we consider the system of functions $\lambda_{r,n}^\alpha(x)$ $(n=0, 1,\ldots)$, $\alpha>-1$, $r\in\mathbb{N}$, orthonormal with respect to a Sobolev-type inner product and generated by the system of Laguerre functions. Using asymptotic formulas for the Laguerre polynomials, we obtain estimates for functions $\lambda_{r,n}^\alpha(x)$, $x\in[0, \infty)$.

Keywords: Laguerre functions, Sobolev-type inner product, Sobolev-orthonormal functions.

UDC: 517.15

MSC: 26D15

Received: 29.09.2020
Revised: 29.01.2021
Accepted: 29.01.2021

Language: English

DOI: 10.15393/j3.art.2021.9210



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© Steklov Math. Inst. of RAS, 2024