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We study the interchange of essential norm and integration of certain families of weighted composition operators acting on the standard weighted Bergman spaces $A^p_\alpha$, where $p>1$ and $\alpha\geq 0$. To be more precise, we give a…

泛函分析 · 数学 2025-05-28 David Norrbo

We study the complex symmetric structure of weighted composition--differentiation operators of order $n $ on the weighted Bergman spaces $A_{\alpha}^2$ with respect to some conjugations. Then we provide some examples of these operators.

泛函分析 · 数学 2021-01-14 Mahbube Moradi , Mahsa Fatehi

In this paper, some characterizations for the compact difference of composition operators on Bergman spaces $A^p_\omega$ with doubling weight are given, which extend Moorhouse's characterization for the difference of composition operators…

复变函数 · 数学 2020-06-09 Yecheng Shi , Songxiao Li

In the paper, we investigate weighted composition operators on Bergman spaces of a half-plane. We characterize weighted composition operators which are hermitian and those which are complex symmetric with respect to a family of…

泛函分析 · 数学 2021-11-30 Pham Viet Hai , Osmar R. Severiano

We present the current results in the study of weighted composition operators on weighted Banach spaces of an unbounded, locally finite metric space. Specifically, we determine characterizations of bounded and compact weighted composition…

泛函分析 · 数学 2022-07-28 Robert F. Allen , Matthew A. Pons

In this paper, we study the boundedness and essential norms of the differences of two generalized composition operators acting from $\alpha$-Bloch space to $\beta$-Bloch space on the open unit disk. From essential norms, we get the…

复变函数 · 数学 2020-04-06 Ning Xu , Ze-Hua Zhou

We establish necessary and sufficient conditions for the boundedness and compactness of weighted composition operators acting on weighted Dirichlet spaces and determine the spectrum of a certain class of such operators. Our results extend…

泛函分析 · 数学 2026-02-10 Anirban Sen

The purpose of this paper is to study sparse domination estimates of composition operators in the setting of complex function theory. The method originates from proofs of the $A_2$ theorem for Calder\'on-Zygmund operators in harmonic…

复变函数 · 数学 2020-01-09 Bingyang Hu , Songxiao Li , Yecheng Shi , Brett D. Wick

We provide an estimate for the essential norm of a weighted composition operator $W_{\psi,\varphi}\colon f\mapsto \psi(f\circ\varphi)$ acting on the space $BMOA$ in terms of the weight function $\psi$ and the $n$-th power $\varphi^n$ of the…

泛函分析 · 数学 2013-12-06 Jussi Laitila , Mikael Lindström

We prove that the norm of a weighted composition operator on the Hardy space H^2 of the disk is controlled by the norm of the weight function in the de Branges-Rovnyak space associated to the symbol of the composition operator. As a…

泛函分析 · 数学 2007-07-24 Michael T. Jury

We give embedding theorems for weighted Bergman-Orlicz spaces on the ball and then apply our results to the study of composition operators in this context. As one of the motivations of this work, we show that there exist some weighted…

泛函分析 · 数学 2010-12-06 Stéphane Charpentier

The boundedness and compactness of weighted composition operators from $H^\infty$ to the Bloch space in the unit ball of Cn are investigated in this paper. In particular, some new characterizations for the boundedness and the essential norm…

复变函数 · 数学 2018-01-08 Juntao Du , Songxiao Li

We give estimates for the essential norms of a positive Toeplitz operator on the Bergman space of a minimal bounded homogeneous domain in terms of the Berezin transform or the averaging function of the symbol. Using these estimates, we also…

泛函分析 · 数学 2011-09-22 Satohi Yamaji

In a recent paper [JFA, 278 (2020), 108401], Choe et al. obtained characterizations for bounded and compact differences of two weighted composition operators acting on standard weighted Bergman spaces over the unit disk in terms of Carleson…

泛函分析 · 数学 2025-07-21 Cezhong Tong , Zicong Yang , Zehua Zhou

We consider an integral operator $\mathcal{I}$, special instances of which was studied in various contexts. Using an appropriate transformation we write this operator in terms of weighted composition operators. Then, we provide a…

复变函数 · 数学 2012-04-16 Epaminondas Diamantopoulos

We establish necessary and sufficient conditions for boundedness of composition operators on the most general class of Hilbert spaces of entire Dirichlet series with real frequencies. Depending on whether or not the space contains any…

复变函数 · 数学 2017-10-11 Minh Luan Doan , Le Hai Khoi

In this paper, we prove the boundedness of the Bergman projection on weighted mixed norm spaces of the upper-half space for some weights that are constructed using the logarithm function and growth functions. Our necessary and sufficient…

经典分析与常微分方程 · 数学 2024-01-08 Jean-Marcel Tanoh Dje , Felix Ofori , Benoit F. Sehba

While there have been extensive studies regarding the theory of composition operators in standard Bergman spaces, there have not been many results pertaining to large Bergman spaces due to a lack of useful tools. In this paper, we give the…

泛函分析 · 数学 2019-09-23 Inyoung Park

We use induction and interpolation techniques to prove that a composition operator induced by a map $\phi$ is bounded on the weighted Bergman space $\A^2_\alpha(\mathbb{H})$ of the right half-plane if and only if $\phi$ fixes $\infty$…

泛函分析 · 数学 2009-10-05 Sam Elliott , Andrew Wynn

In this article, we estimate the essential norm of weighted composition operator $W_{u, \varphi}$, acting on the logarithmic Bloch space $\mathcal{B}^{v_{\log}}$, in terms of the $n$-power of the analytic function $\varphi$ and the norm of…

泛函分析 · 数学 2014-09-12 María T. Malavé-RamiÍrez , Julio C. Ramos-Fernández