Results 61 to 70 of about 386,373 (206)

Composition Operators and Multiplication Operators on Weighted Spaces of Analytic Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Let V be an arbitrary system of weights on an open connected subset G of ℂN(N≥1) and let B(E) be the Banach algebra of all bounded linear operators on a Banach space E.
J. S. Manhas
doaj   +1 more source

Composition Operators on Cesàro Function Spaces

open access: yesJournal of Function Spaces, 2014
The compact, invertible, Fredholm, and closed range composition operators are characterized. We also make an effort to compute the essential norm of composition operators on the Cesàro function spaces.
Kuldip Raj, Suruchi Pandoh, Seema Jamwal
doaj   +1 more source

Weighted Composition Operators and Supercyclicity Criterion

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We consider an equivalent condition to the property of Supercyclicity Criterion, and then we investigate this property for the adjoint of weighted composition operators acting on Hilbert spaces of analytic functions.
Bahmann Yousefi, Javad Izadi
doaj   +1 more source

Kitai's Criterion for composition operators

open access: yesJournal of Mathematical Analysis and Applications
We present a general and natural framework to study the dynamics of composition operators on spaces of measurable functions, in which we then reconsider the characterizations for hypercyclic and mixing composition operators obtained by Bayart, Darji and Pires.
Daniel Gomes, Karl-G. Grosse-Erdmann
openaire   +3 more sources

A new class of composition operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
A new class of composition operators Pϕ:H2(T)→H2(T), with ϕ:T→D¯ is introduced. Sufficient conditions on ϕ for Pϕ to be bounded and Hilbert-Schmidt are obtained.
S. Pattanayak   +2 more
doaj   +1 more source

Spectra of Some Composition Operators

open access: yesJournal of Functional Analysis, 1994
If \(\mathcal H\) is a Hilbert space of holomorphic functions on the unit ball \(B_ N\) in \({\mathbf C}^ N\) and \(\phi\) is a non-constant holomorphic map of the unit ball into itself, the composition operator \(C_ \varphi\) is the operator on \(\mathcal H\) defined by \(C_ \varphi f= f\circ \varphi\). The authors give spectral properties for bounded
Cowen, C.C., Maccluer, B.D.
openaire   +1 more source

COMPACT DIFFERENCES OF COMPOSITION OPERATORS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2008
AbstractLet ϕ andψbe analytic self-maps of the open unit disk. Each of them induces a composition operator,CϕandCψrespectively, acting between weighted Bergman spaces of infinite order. We show that the differenceCϕ−Cψis compact if and only if both operators are compact or both operators are not compact and the pseudohyperbolic distance of the ...
openaire   +1 more source

Norms of linear-fractional composition operators [PDF]

open access: bronze, 2003
Paul Bourdon   +3 more
openalex   +1 more source

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