Results 21 to 30 of about 2,962,628 (305)

Essential norm of the difference of composition operators on Bloch space [PDF]

, 2010
summary:Let $\varphi $ and $\psi $ be holomorphic self-maps of the unit disk, and denote by $C_\varphi $, $C_\psi $ the induced composition operators.
Yang, Ke-Ben, Zhou, Ze-Hua, Ze-Hua Zhou, Ke-Ben Yang   +3 more
core   +1 more source

Centered weighted composition operators via measure theory [PDF]

, 1982
summary:We describe the centered weighted composition operators on $L^2(\Sigma )$ in terms of their defining symbols.
Jafari Bakhshkandi, Mehri, Mehri Jafari Bakhshkandi, Jabbarzadeh, Mohammad Reza, Mohammad Reza Jabbarzadeh, Alan Lambert, thomas Hoover, Joseph Quinn   +6 more
core   +1 more source

Isometric composition operators on weighted Dirichlet space [PDF]

, 2016
summary:We investigate isometric composition operators on the weighted Dirichlet space $\mathcal {D}_\alpha $ with standard weights $(1-|z|^2)^\alpha $, $\alpha >-1$.
Zhou, Ze-Hua, Han, Shi-An
core   +1 more source

Composition operators in Orlicz spaces [PDF]

, 2004
summary:The invertible, closed range, compact, Fredholm and isometric composition operators on Musielak-Orlicz spaces of Bochner type are characterized in the ...
Hudzik, Henryk,, Cui, Yunan, Sharma, Sunil K., Cui, Yunan,, Maligranda, Lech,, Maligranda, Lech, Hudzik, Henryk, Kumar, Romesh,, Kumar, Romesh, Raj, Kuldip, Romesh Kumar, Henryk Hudzik, Lech Maligranda, Yunan Cui   +13 more
core   +1 more source

Microlocal Analysis of Some Isospectral Deformations [PDF]

, 1994
We study the microlocal structure of the examples of isospectral deformations of Riemannian manifolds given by D. DeTurck and C. Gordon in [DeT-G1]. The Schwartz kernel of the intertwining operators considered by them may be written as an oscillatory ...
Marhuenda, Francisco, Marhuenda Hurtado, Francisco, F. Marhuenda   +2 more
core   +2 more sources

Composition operators on Banach function spaces [PDF]

, 2013
The aim of this thesis is to provide a survey of the topic of composition operators on spaces of (equivalence classes of) measurable functions and attempt to unify some of the most important results contained in the literature.
de Jager, Pierre
core   +1 more source

Composition operators [PDF]

Bulletin of the Australian Mathematical Society, 1978
A study of centered composition operators on l2 is made in this paper. Also the spectrum of surjective composition operators is computed. A necessary and sufficient condition is obtained for the closed unit disc to be the spectrum of a surjective composition operator.
Singh, R. K., Komal, B. S.
openaire   +2 more sources

Approximation and entropy numbers of composition operators

, 2020
We give a survey on approximation numbers of composition operators on the Hardy space, on thedisk and on the polydisk, and add corresponding new results on their entropy numbers, revealing how theyare ...
Rodríguez Piazza, Luis, Queffélec, Hervé, Li, Daniel   +2 more
core   +1 more source

Iteration of Composition Operators on small Bergman spaces of Dirichlet series

Concrete Operators, 2018
The Hilbert spaces ℋw consisiting of Dirichlet series F(s)=∑n=1∞ann-s$F(s) = \sum\nolimits_{n = 1}^\infty {{a_n}{n^{ - s}}}$ that satisfty ∑n=1∞|an|2/wn 0 and {wn}n having average order (logj+n)α${(\log _j^ + n)^\alpha }$, that the composition operators ...
Zhao Jing
doaj   +1 more source

A characterization of composition operators on algebras of analytic functions [PDF]

, 2008
We give a characterization of composition operators between algebras of analytic functions on a Banach space. We show (under fairly general conditions) that they are precisely the multiplicative operators that are transposes of operators of between the ...
Carando, Daniel Germán
core   +1 more source