Results 31 to 40 of about 442 (46)

Weighted composition followed by differentiation between weighted Banach spaces of holomorphic functions [PDF]

, 2011
2010 Mathematics Subject Classification: 47B33, 47B38.Let f be an analytic self-map of the open unit disk D in the complex plane and y be an analytic map on D.
Wolf, Elke
core  

Approximation numbers of composition operators on the Hardy space of the ball and of the polydisk [PDF]

, 2015
We give general estimates for the approximation numbers of composition operators on the Hardy space on the ball $B\_d$ and the polydisk $D^d$
Li, Daniel, Queffélec, Hervé, Rodríguez-Piazza, Luis   +2 more
core   +2 more sources

Study of weighted elliptic composition operators on the unit ball of ℂN

Concrete Operators
We study the general properties, point spectrum and spectrum of a weighted composition operator Wm,φ{W}_{m,\varphi } with elliptic symbol φ\varphi on the unit ball BN{{\mathbb{B}}}_{N} of CN{{\mathbb{C}}}^{N}, and general weight m∈Hol(BN)m\in {\rm{Hol}}\
Oger Lucas
doaj   +1 more source

The compactness of the sum of weighted composition operators on the ball algebra

Journal of Inequalities and Applications, 2011
In this paper, we investigate the compactness of the sum of weighted composition operators on the unit ball algebra, and give the characterization of compact differences of two weighted composition operators on the ball algebra.
Tong Ce-Zhong, Zhou Ze-Hua
doaj  

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

H(b) spaces of non-extreme b over finitely connected planar domains

Concrete Operators
In this work, density of the algebra A(D) $\mathcal{A}\left(D\right)$ in H(b) spaces of finitely connected planar domains and the boundedness of composition operators on these function spaces are studied.
Şahin Sibel
doaj   +1 more source

A note on the Königs domain of compact composition operators on the Bloch space

Journal of Inequalities and Applications, 2011
Let be the unit disk in the complex plane. We define to be the little Bloch space of functions f analytic in which satisfy lim|z|→1 (1 - |z|2)|f'(z)| = 0. If is analytic then the composition operator Cφ : f ↦ f ∘ φ
Jones Matthew
doaj  

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