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Related papers: Operators in the Fock-Toeplitz algebra

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We investigate the global boundedness of Fourier integral operators with amplitudes in the general H\"ormander classes $S^{m}_{\rho, \delta}(\mathbb{R}^n)$, $\rho, \delta\in [0,1]$ and non-degenerate phase functions of arbitrary rank…

Analysis of PDEs · Mathematics 2023-09-13 Anders Israelsson , Tobias Mattsson , Wolfgang Staubach

One of the major goals in the theory of Toeplitz operators on the Bergman space over the unit disk $\mathbb{D}$ in the complex place $\mathbb{C}$ is to completely describe the commutant of a given Toeplitz operator, that is, the set of all…

Functional Analysis · Mathematics 2013-08-01 Issam Louhichi , Fanilo Randriamahaleo , Lova Zakariasy

The main purpose of this paper is to discuss Hardy type spaces, Bloch type spaces and the composition operators of complex-valued harmonic functions. We first establish a sharp estimate of the Lipschitz continuity of complex-valued harmonic…

Complex Variables · Mathematics 2022-07-11 Shaolin Chen , Hidetaka Hamada , Jian-Feng Zhu

We study a Toeplitz type operator $Q_\mu$ between the holomorphic Hardy spaces $H^p$ and $H^q$ of the unit ball. Here the generating symbol $\mu$ is assumed to a positive Borel measure. This kind of operator is related to many classical…

Functional Analysis · Mathematics 2018-05-14 Jordi Pau , Antti Perälä

In this paper we investigate the boundedness of classical operators, namely the Hardy-Littlewood maximal operator, fractional integral operators, and Calderon-Zygmund operators, on generalized weighted Morrey spaces and generalized weighted…

Functional Analysis · Mathematics 2022-07-14 Yusuf Ramadana , Hendra Gunawan

We study the boundedness of Toeplitz operators $T_\psi$ with locally integrable symbols on weighted harmonic Bergman spaces over the unit ball of $\mathbb{R}^n$. Generalizing earlier results for analytic function spaces, we derive a general…

Functional Analysis · Mathematics 2022-03-15 Raffael Hagger , Congwen Liu , Jari Taskinen , Jani A. Virtanen

In this paper we survey and bring together several approaches to obtaining inner functions for Toeplitz operators. These approaches include the classical definition, the Wold decomposition, the operator-valued Poisson Integral, and Clark…

Complex Variables · Mathematics 2018-09-13 Raymond Cheng , Javad Mashreghi , William T. Ross

Given a weighted $\ell^2$ space with weights associated to an entire function, we consider pairs of weighted shift operators, whose commutators are diagonal operators, when considered as operators over a general Fock space. We establish a…

Mathematical Physics · Physics 2023-04-19 Daniel Alpay , Paula Cerejeiras , Uwe Kaehler , Trevor Kling

This paper considers discrete and continuous semigroups of (weighted) composition operators on the Fock space. For discrete semigroups consisting of powers of a single operator, the asymptotic behaviour of the semigroups is analysed. For…

Functional Analysis · Mathematics 2022-06-02 I. Chalendar , J. R. Partington

We characterize the compactness of composition operators; in term of generalized Nevanlinna counting functions, on a large class of Hilbert spaces of analytic functions, which can be viewed between the Bergman and the Dirichlet spaces

Functional Analysis · Mathematics 2010-05-02 Karim Kellay , Pascal Lefèvre

A two-point algebra is a set of bounded analytic functions on the unit disk that agree at two distinct points $a,b \in \mathbb{D}$. This algebra serves as a multiplier algebra for the family of Hardy Hilbert spaces $H^2_t := \{ f\in H^2 :…

Functional Analysis · Mathematics 2022-10-12 Christopher Felder , Douglas T. Pfeffer , Benjamin P. Russo

The author has introduced in a recent paper a new class of operators, called co-Toeplitz operators, with symbols in a co-algebra. This is the categorical dual to Toeplitz operators which have symbols in an algebra. The mapping from a symbol…

Mathematical Physics · Physics 2018-10-30 Stephen Bruce Sontz

In this paper we extend Galbis' elegant norm bounds for self-adjoint Toeplitz operators on the Fock space to bounded and integrable symbols which are non-radial. The main ingredients are a transplantation of the remarkable Nicola-Tilli…

Functional Analysis · Mathematics 2024-05-21 Yi C. Huang , Jian-Yang Zhang

A truncated Toeplitz operator is the compression $A_{\phi}:\K_{\Theta} \to \K_{\Theta}$ of a Toeplitz operator $T_{\phi}:H^2\to H^2$ to a model space $\K_{\Theta} := H^2 \ominus \Theta H^2$. For $\Theta$ inner, let $\T_{\Theta}$ denote the…

Functional Analysis · Mathematics 2009-10-03 Joseph A. Cima , Stephan Ramon Garcia , William T. Ross , Warren R. Wogen

We study the boundedness of Toeplitz-type operators defined in the context of the Calder\'on reproducing formula considering the specific wavelets whose Fourier transforms are related to Laguerre polynomials. Some sufficient conditions for…

Functional Analysis · Mathematics 2011-07-21 Ondrej Hutník

This paper is a follow-up to a recent article about the essential spectrum of Toeplitz operators acting on the Bergman space over the unit ball. As mentioned in the said article, some of the arguments can be carried over to the case of…

Functional Analysis · Mathematics 2018-04-12 Raffael Hagger

We characterize operator-theoretic properties (boundedness, compactness, and Schatten class membership) of Toeplitz operators with positive measure symbols on Bergman spaces of holomorphic hermitian line bundles over K\"ahler…

Complex Variables · Mathematics 2017-07-07 Said Asserda

In this article, we introduce a new class of conjugations in the scalar valued Hardy space $H^2_{\mathbb{C}}(\mathbb{D})$ and provide a characterization of a complex symmetric Toeplitz operator $T_{\phi}$ with respect to these newly…

Functional Analysis · Mathematics 2021-08-17 Arup Chattopadhyay , Soma Das , Chandan Pradhan , Srijan Sarkar

This is a review paper based on the series of our papers devoted to a structure of true-poly-analytic Bergman function spaces over the upper half-plane in the complex plane and to a detailed study of properties of Toeplitz operators with…

Functional Analysis · Mathematics 2015-09-03 Ondrej Hutník , Mária Hutníková

The problem of describing the analytic functions $g$ on the unit disc such that the integral operator $T_g(f)(z)=\int_0^zf(\zeta)g'(\zeta)\,d\zeta$ is bounded (or compact) from a Banach space (or complete metric space) $X$ of analytic…

Complex Variables · Mathematics 2022-11-08 José Ángel Peláez , Jouni Rättyä , Fanglei Wu