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Zapiski Nauchnykh Seminarov LOMI, 1984, Volume 135, Pages 113–119 (Mi znsl4762)  

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

Hankel Schur multipliers and multipliers of $H^1$

V. V. Peller
Full-text PDF (320 kB) Citations (1)
Abstract: Let $V^2$ be the space of matrices $\alpha=\{\alpha_{mk}\}_{m,k\geqslant0}$ such that $\sup_N\|P_N\alpha\|_{l^\infty\hat\otimes l^\infty}\leqslant\mathrm {const}$, where
\begin{gather*} (P_N\alpha)_{mk}=\begin{cases} \alpha_{mk},\quad m, k\leqslant N\\ 0,\quad\text{otherwise.} \end{cases} \end{gather*}
The papers concerns Hankel matrices (i. e. matrices $\Gamma_F=\{\hat F(m+k)_{m,k\geqslant0}\}$) in $V^2$. The following assertion is the main result of the paper.
Let $s_{j+1}/s_j\geqslant q>1$, $\{F_j\}_{j\geqslant1}$ be a sequence of polynomials whose Fourier coeeficients are supported on $[s_j, s_{j+1})$. If there exists a positive function $\omega$ on $\mathbb T$ such that $1/\omega\in L^1$ and $\sup_j\int_{\mathbb T}|F_j|^2\omega\,dm<\infty$ then $\Gamma_F\in V^2$.
As a corollary it is proved that under the above hypothesis $F$ is a multiplier of $H^1$, i. e.
$$ \varphi\in H^1\Rightarrow\varphi*F=\sum_{n\geqslant0}\hat\varphi(n)\hat F(n)z^n\in H^1. $$
Bibliographic databases:
Document Type: Article
UDC: 517.98
Language: Russian
Citation: V. V. Peller, “Hankel Schur multipliers and multipliers of $H^1$”, Investigations on linear operators and function theory. Part XIII, Zap. Nauchn. Sem. LOMI, 135, "Nauka", Leningrad. Otdel., Leningrad, 1984, 113–119
Citation in format AMSBIB
\Bibitem{Pel84}
\by V.~V.~Peller
\paper Hankel Schur multipliers and multipliers of~$H^1$
\inbook Investigations on linear operators and function theory. Part~XIII
\serial Zap. Nauchn. Sem. LOMI
\yr 1984
\vol 135
\pages 113--119
\publ "Nauka", Leningrad. Otdel.
\publaddr Leningrad
\mathnet{http://mi.mathnet.ru/znsl4762}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=741701}
\zmath{https://zbmath.org/?q=an:0561.47023}
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  • https://www.mathnet.ru/eng/znsl/v135/p113
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Записки научных семинаров ПОМИ
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