Results 11 to 20 of about 348 (122)
Multipliers of trigonometric series and pointwise convergence [PDF]
Transactions of the American Mathematical Society, 1969 Introduction. In a recent paper M. Weiss and A. Zygmund [7] have studied the pointwise convergence of a trigonometric series a einx when the multipliers An= Injti (y real) are applied to it. The proof of their result makes use of Peano derivatives in LP, which bear a close connection with the tP classes of A. P. Calderon and A. Zygmund [1].
Riviere, N. M., Sagher, Y.
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Pointwise multipliers between spaces of analytic functions
Quaestiones Mathematicae, 2023 A Banach space X of analytic function in D, the unit disc in C, is said to be admissible if it contains the polynomials and convergence in X implies uniform convergence in compact subsets of D.If X and Y are two admissible Banach spaces of analytic functions in D and g is a holomorphic function in D, g is said to be a multiplier from X to Y if g · f ...
Daniel Girela, Noel Merchán
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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 +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 \(\mathbb{R}^n\).
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Forward integration, convergence and non-adapted pointwise multipliers [PDF]
Infinite Dimensional Analysis, Quantum Probability and Related Topics, 2015 In this paper we study the forward integral of operator-valued processes with respect to a cylindrical Brownian motion. In particular, we provide conditions under which the approximating sequence of processes of the forward integral, converges to the stochastic integral process with respect to Sobolev norms of smoothness α < 1/2. This result will be
Pronk, Matthijs, Veraar, Mark
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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
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Pointwise multipliers on martingale Campanato spaces [PDF]
Studia Mathematica, 2014 We introduce generalized Campanato spaces $\mathcal{L}_{p,ϕ}$ on a probability space $(Ω,\mathcal{F},P)$, where $p\in[1,\infty)$ and $ϕ:(0,1]\to(0,\infty)$. If $p=1$ and $ϕ\equiv1$, then $\mathcal{L}_{p,ϕ}=\mathrm{BMO}$. We give a characterization of the set of all pointwise multipliers on $\mathcal{L}_{p,ϕ}$.
Nakai, Eiichi, Sadasue, Gaku
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Pointwise multipliers on weak Orlicz spaces
Hiroshima Mathematical Journal, 2020 We characterize the pointwise multipliers from a weak Orlicz space to another weak Orlicz space.
Kawasumi, Ryota, Nakai, Eiichi
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Homogeneity Property of Besov and Triebel-Lizorkin Spaces
Journal of Function Spaces and Applications, 2012 We consider the classical Besov and Triebel-Lizorkin spaces defined via differences and prove a homogeneity property for functions with bounded support in the frame of these spaces. As the proof is based on compact embeddings between the studied function
Cornelia Schneider, Jan Vybíral
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Failure of the trilinear operator space Grothendieck theorem
Discrete Analysis, 2019 Failure of the trilinear operator space Grothendieck theorem, Discrete Analysis 2019:8, 16 pp. Let $\beta:\ell_\infty^n\times \ell_\infty^n\to\mathbb C$ be a bilinear form.
Jop Briët, Carlos Palazuelos
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