Results 31 to 40 of about 76 (65)

Operators commuting with complex symmetric weighted composition operators on H 2

Concrete Operators
In this article, we initially study when an anti-linear Toeplitz operator is in the commutant of a composition operator. Primarily, we investigate weighted composition operators Wg,ψ{W}_{g,\psi } commuting with complex symmetric weighted composition ...
Bhuia Sudip Ranjan
doaj   +1 more source

Prado-Bassas, Holomorphic operators generating dense images

, 2020
. The existence of infinite dimensional closed linear spaces of holomorphic functions f on a domain G in the complex plane such that T f has dense images on certain subsets of G, where T is a continuous linear operator, is analyzed.
J A Prado-Bassas, M C Calderón-Moreno, L Bernal-González   +2 more
core  

Composition operators with surjective symbol and small approximation numbers

, 2018
We give a new proof of the existence of a surjective symbol whose associated composition operator on H 2 (D) is in all Schatten classes, with the improvement that its approximation numbers can be, in some sense, arbitrarily small.
Queffélec, Hervé, Rodríguez-Piazza, Luis, Li, Daniel   +2 more
core   +1 more source

Norms and essential norms of composition operators from H^∞ to general weighted Bloch spaces in the polydisk

Journal of Inequalities and Applications, 2011
Let Un be the unit polydisk of ℂ n and φ a holomorphic self-map of Un. H∞(Un) and B log α ( U n ) denote the space of bounded holomorphic functions and the space of general weighted Bloch functions ...
Wu Huanqin, Wang Maofa
doaj  

Essential norm of some extensions of the generalized composition operators between kth weighted-type spaces. [PDF]

J Inequal Appl, 2017
Stević S.
europepmc   +1 more source

Fredholmness of multiplication of a weighted composition operator with its adjoint on H2 and Aα2. [PDF]

J Inequal Appl, 2018
Haji Shaabani M.
europepmc   +1 more source

Improved and refined numerical radius inequalities for Hilbert space operators

, 2023
Khaldoun Al-Zoubi, Mohammed Al-Dolat
core   +1 more source

Bloch-to-Hardy composition operators

Open Mathematics, 2013
Doubtsov Evgueni, Petrov Andrei
doaj   +1 more source

Compact differences of weighted composition operators on the weighted Bergman spaces. [PDF]

J Inequal Appl, 2017
Wang M, Yao X, Chen F.
europepmc   +1 more source

Differences of composition operators from Zygmund-type spaces to Bloch-type spaces

, 2023
YuXia Liang, Hang Zhou, JinHao Liu
core   +1 more source