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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive

Izv. Saratov Univ. Math. Mech. Inform., 2013 Volume 13, Issue 1(1), Pages 29–32 (Mi isu347)

Mathematics

Limit Discrete Meixner Series and Their Approximative Properties

E. Sh. Sultanov

Daghestan Scientific Centre of the Russian Academy of Sciences, Makhachkala

Abstract: In this article the problem of function approximation by discrete series by Meixner polynomials orthogonal on uniform net $\{0,1,\ldots\}$ is investigated. We constructed new series by these polynomials for which partial sums coincide with input function $f(x)$ in $x=0$. These new series were constructed by the passage to the limit of Fourier series $\sum\limits_{k=0}^\infty f^{\alpha}_km_k^{\alpha}(x)$ by Meixner polynomials when $\alpha\to-1$.

Key words: Meixner polynomials, Fourier series, limit series.

UDC: 517.518.82

DOI: 10.18500/1816-9791-2013-13-1-1-29-32



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