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Chebyshevskii Sbornik, 2021, Volume 22, Issue 5, Pages 354–358
DOI: https://doi.org/10.22405/2226-8383-2021-22-5-354-358
(Mi cheb1140)
 

This article is cited in 1 scientific paper (total in 1 paper)

BRIEF MESSAGE

Refinement of Bernstein–Nikolskii constant for the sphere with Dunkl weight in the case of octahedron group

D. V. Gorbacheva, N. N. Dobrovol'skiiab, I. A. Martyanova

a Tula State University (Tula)
b Tula State Lev Tolstoy Pedagogical University (Tula)
Full-text PDF (629 kB) Citations (1)
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Abstract: We continue the study of the sharp Bernstein–Nikolskii constants for spherical polynomials in the space $L^{p}(\mathbb{S}^{d})$ with the Dunkl weight. We consider the model case of the octahedral reflection group $\mathbb{Z}_{2}^{d+1}$ and weight $\prod_{j=1}^{d+1}|x_{j}|^{2\kappa_{j}} $ when the explicit form of the Dunkl intertwining operator is known. We show that for $\min \kappa=0$ the multidimensional problem is reduced to the one-dimensional problem for the Gegenbauer weight, otherwise not.
Keywords: spherical polynomial, reproducing kernel, Dunkl weight, Bernstein–Nikoskii constant.
Funding agency Grant number
Russian Science Foundation 18-11-00199
Received: 15.09.2021
Accepted: 05.12.2021
Document Type: Article
UDC: 517.5
Language: Russian
Citation: D. V. Gorbachev, N. N. Dobrovol'skii, I. A. Martyanov, “Refinement of Bernstein–Nikolskii constant for the sphere with Dunkl weight in the case of octahedron group”, Chebyshevskii Sb., 22:5 (2021), 354–358
Citation in format AMSBIB
\Bibitem{GorDobMar21}
\by D.~V.~Gorbachev, N.~N.~Dobrovol'skii, I.~A.~Martyanov
\paper Refinement of Bernstein--Nikolskii constant for the sphere with Dunkl weight in the case of octahedron group
\jour Chebyshevskii Sb.
\yr 2021
\vol 22
\issue 5
\pages 354--358
\mathnet{http://mi.mathnet.ru/cheb1140}
\crossref{https://doi.org/10.22405/2226-8383-2021-22-5-354-358}
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  • https://www.mathnet.ru/eng/cheb/v22/i5/p354
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Full-text PDF :32
    References:12
     
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