Results 1 to 10 of about 4,854,913 (333)

Hyponormality on a Weighted Bergman Space [PDF]

open access: yesJournal of Function Spaces, 2020
A bounded Hilbert space operator T is hyponormal if T∗T−TT∗ is a positive operator. We consider the hyponormality of Toeplitz operators on a weighted Bergman space.
Houcine Sadraoui   +3 more
doaj   +2 more sources

Compact generalized weighted composition operators on the Bergman space [PDF]

open access: yesOpuscula Mathematica, 2017
We characterize the compactness of the generalized weighted composition operators acting on the Bergman space.
Qinghua Hu, Xiangling Zhu
doaj   +2 more sources

Sarason Conjecture on the Bergman space [PDF]

open access: yesInternational Mathematics Research Notices, 2013
We provide a counterexample to the Sarason Conjecture for the Bergman space and present a characterisation of bounded Toeplitz products on the Bergman space in terms of test functions by means of a dyadic model approach.
A. Aleman, S. Pott, M. Reguera
semanticscholar   +4 more sources

The Duals of Harmonic Bergman Spaces [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1990
In this paper we show that for Ω \Omega , a starlike Lipschitz domain, the dual of the space of harmonic functions in L p ( Ω ) {L^p}(\Omega ) need not be the harmonic functions in L q
Charles V. Coffman, Jonathan Cohen
openalex   +3 more sources

Composition Operators from the Weighted Bergman Space to the 𝑛th Weighted Spaces on the Unit Disc

open access: yesDiscrete Dynamics in Nature and Society, 2009
The boundedness of the composition operator from the weighted Bergman space to the recently introduced by the author, the 𝑛th weighted space on the unit disc, is characterized.
Stevo Stević
doaj   +2 more sources

Commutative Algebras of Toeplitz Operators on the Bergman Space Revisited: Spectral Theorem Approach [PDF]

open access: yesIntegral equations and operator theory, 2022
For three standard models of commutative algebras generated by Toeplitz operators in the weighted analytic Bergman space on the unit disk, we find their representations as the algebras of bounded functions of certain unbounded self-adjoint operators.
G. Rozenblum, N. Vasilevski
semanticscholar   +1 more source

Meromorphic Bergman spaces

open access: yesUkrains’kyi Matematychnyi Zhurnal, 2022
UDC 517.5We introduce new spaces of holomorphic functions on the pointed unit disc in <em>C</em> that generalize classical Bergman spaces. We prove some fundamental properties of these spaces and their dual spaces. Finally, we extend the Hardy – Littlewood  and Fejer – Riesz inequalities to these spaces with application of the Toeplitz ...
N. Ghiloufi, M. Zaway
openaire   +3 more sources

Commuting H-Toeplitz operators with quasihomogeneous symbols

open access: yesAIMS Mathematics, 2022
In this paper, we characterize the commutativity of H-Toeplitz operators with quasihomogeneous symbols on the Bergman space, which is different from the case of Toeplitz operators with same symbols on the Bergman space.
Jinjin Liang   +3 more
doaj   +1 more source

Logarithmic Bergman-type space and a sum of product-type operators

open access: yesAIMS Mathematics, 2023
One of the aims of the present paper is to obtain some properties about logarithmic Bergman-type space on the unit ball. As some applications, the bounded and compact operators $ \mathfrak{S}^m_{\vec{u}, {\varphi}} = \sum_{i = 0}^{m}M_{u_i}C_{\varphi}\Re^
Yan-fu Xue   +3 more
doaj   +1 more source

Composition-Differentiation Operator on the Bergman Space

open access: yesPan-American Journal of Mathematics, 2023
We investigate the properties of composition-differentiation operator Dψ on the Bergman space of the unit disk L2a(D). Specifically, we characterize the properties of the reproducing kernel for the derivatives of the Bergman space functions. Moreover, we
K. O. Aloo, J. O. Bonyo, I. Okello
doaj   +1 more source

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