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Matematicheskie Zametki, 2009, Volume 85, Issue 4, Pages 502–515
DOI: https://doi.org/10.4213/mzm6640
(Mi mzm6640)
 

This article is cited in 3 scientific papers (total in 3 papers)

Almost Everywhere Divergent Subsequences of Fourier Sums of Functions from $\varphi(L)\cap H_1^\omega$

N. Yu. Antonov

Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences
Full-text PDF (548 kB) Citations (3)
References:
Abstract: For a gap sequence of natural numbers $\{n_k\}^\infty_{k=1}$, for a nondecreasing function $\varphi\colon[0,+\infty)\to[0,+\infty)$ such that $\varphi(u)=o(u\ln\ln u)$ as $u\to\infty$, and a modulus of continuity satisfying the condition $(\ln k)^{-1}=O(\omega(n_k^{-1}))$, we present an example of a function $F\in\varphi(L)\cap H_1^\omega$ with an almost everywhere divergent subsequence $\{S_{n_k}(F,x)\}$ of the sequence of partial sums of the trigonometric Fourier series of the function $F$.
Keywords: Fourier sum, gap sequence, trigonometric Fourier series, modulus of continuity, Dirichlet kernel, Lebesgue measurability, Jensen's inequality.
Received: 15.01.2008
Revised: 04.07.2008
English version:
Mathematical Notes, 2009, Volume 85, Issue 4, Pages 484–495
DOI: https://doi.org/10.1134/S0001434609030201
Bibliographic databases:
UDC: 517.518
Language: Russian
Citation: N. Yu. Antonov, “Almost Everywhere Divergent Subsequences of Fourier Sums of Functions from $\varphi(L)\cap H_1^\omega$”, Mat. Zametki, 85:4 (2009), 502–515; Math. Notes, 85:4 (2009), 484–495
Citation in format AMSBIB
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  • https://doi.org/10.4213/mzm6640
  • https://www.mathnet.ru/eng/mzm/v85/i4/p502
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Математические заметки Mathematical Notes
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