Results 11 to 20 of about 673 (226)

Pointwise multipliers of weighted BMO spaces [PDF]

Proceedings of the American Mathematical Society, 1993
In a recent paper by S. Bloom ( Pointwise multipliers of weighted B M O BMO
Kôzô Yabuta
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Pointwise multipliers for Triebel–Lizorkin and Besov spaces on Lie groups [PDF]

Bulletin des Sciences Mathématiques, 2023
30 ...
Tommaso Bruno, Marco M. Peloso, Maria Vallarino   +2 more
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Pointwise multipliers for reverse Holder spaces [PDF]

Studia Mathematica, 1994
The author gives necessary and sufficient conditions for a positive function to multiply reverse Hölder spaces \(RH_p\) into other reverse Hölder spaces \(RH_q\) when \(0< q\leq p\leq \infty\), and considers local variants and weak reverse Hölder conditions. Let \(\Omega\) be an open subset of \(\mathbb{R}^n\).
Stephen M. Buckley, M. Buckley, Stephen, Stephen Buckley   +2 more
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Pointwise multipliers of Calderón‐Lozanovskiǐ spaces

Mathematische Nachrichten, 2012
AbstractSeveral results concerning multipliers of symmetric Banach function spaces are presented firstly. Then the results on multipliers of Calderón‐Lozanovskiǐ spaces are proved. We investigate assumptions on a Banach ideal space E and three Young functions φ1, φ2 and φ, generating the corresponding Calderón‐Lozanovskiǐ spaces \documentclass{article}\
Kolwicz, Pawel, Lesnik, Karol, Maligranda, Lech   +2 more
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Traces of multipliers in pairs of weighted Sobolev spaces [PDF]

Journal of Function Spaces and Applications, 2005
We prove that the pointwise multipliers acting in a pair of fractional Sobolev spaces form the space of boundary traces of multipliers in a pair of weighted Sobolev space of functions in a domain.
Vladimir Maz'ya, Tatyana Shaposhnikova
doaj   +2 more sources

On pointwise convergence of cone multipliers

Journal of Functional Analysis
For $p\ge 2$, and $λ>\max\{n|\tfrac 1p-\tfrac 12|-\tfrac12, 0\}$, we prove the pointwise convergence of cone multipliers, i.e. $$ \lim_{t\to\infty}T_t^λ(f)\to f \text{ a.e.},$$ where $f\in L^p(\mathbb R^n)$ satisfies $supp\ \widehat f\subset\{ξ\in\mathbb R^n:\ 1<|ξ_n|<2\}$.
Peng Chen, Danqing He, Xiaochun Li, Lixin Yan   +3 more
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Pointwise multipliers on weighted BMO spaces [PDF]

Studia Mathematica, 1997
Summary: Let \(E\) and \(F\) be spaces of real- or complex-valued functions defined on a set \(X\). A real- or complex-valued function \(g\) defined on \(X\) is called a pointwise multiplier from \(E\) to \(F\) if the pointwise product \(fg\) belongs to \(F\) for each \(f\in E\).
Nakai, Eiichi
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Pointwise multipliers of Besov spaces on Carnot–Carathéodory spaces

Journal of Mathematical Analysis and Applications, 2012
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Han, Yanchang
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Pointwise multipliers in Hardy-Orlicz spaces, and interpolation

MATHEMATICA SCANDINAVICA, 2010
We study multipliers of Hardy-Orlicz spaces ${\mathcal H}_{\Phi}$ which are strictly contained between $\bigcup_{p>0}H^p$ and so-called "big" Hardy-Orlicz spaces. Big Hardy-Orlicz spaces, carrying an algebraic structure, are equal to their multiplier algebra, whereas in classical Hardy spaces $H^p$, the multipliers reduce to $H^{\infty}$.
HARTMANN, Andreas
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Pointwise multipliers for Besov spaces B 0,b, p,∞(Rn) with only logarithmic smoothness [PDF]

, 2023
In this article, we establish a characterization of the set M(B0,b p,∞(Rn)) of all pointwise multipliers of Besov spaces B0,b p,∞(Rn) with only logarithmic smoothness b ∈ R in the special cases p = 1 and p = ∞.
Yuan, Wen, Li, Ziwei, Sickel, Winfried, Yang, Dachun   +3 more
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