Results 11 to 20 of about 2,927,156 (202)

Composition Operator on Bergman-Orlicz Space [PDF]

open access: yesJournal of Inequalities and Applications, 2009
Let denote the open unit disk in the complex plane and let denote the normalized area measure on . For and a twice differentiable, nonconstant, nondecreasing, nonnegative, and convex function on , the Bergman-Orlicz space is defined as ...
Jiang Zhijie, Cao Guangfu
doaj   +3 more sources

The Composition Operator Induced By The Function

open access: yesJournal of Kufa for Mathematics and Computer, 2012
The main aim of this search to study the composition operator induced by the automorphism  and discuss the adjoint of the composition operator, also we discuss some properties of composition operator and tried to see the analogue properties in order to
Aqeel Mohammed Hussain
doaj   +2 more sources

Co-Rank of a Composition Operator

open access: yesCanadian Mathematical Bulletin, 1986
AbstractA composition operator CT on L2(X, Σ,m) is a bounded linear transformation induced by a mapping T : X → X via CTf = f∘ T.If m has no atoms then the co-rank of CT (i.e., dim is either zero or infinite. As a corollary, when m has no atoms, CT is a Fredholm operator iff it is invertible.
David J. Harrington
openaire   +2 more sources

Composition Operators and Endomorphisms [PDF]

open access: yesComplex Analysis and Operator Theory, 2010
If $b$ is an inner function, then composition with $b$ induces an endomorphism, $β$, of $L^\infty(\mathbb{T})$ that leaves $H^\infty(\mathbb{T})$ invariant. We investigate the structure of the endomorphisms of $B(L^2(\mathbb{T}))$ and $B(H^2(\mathbb{T}))$ that implement $β$ through the representations of $L^\infty(\mathbb{T})$ and $H^\infty(\mathbb{T})$
Courtney, Dennis   +2 more
openaire   +2 more sources

Composition-Differentiation Operator on Weighted Bergman Spaces [PDF]

open access: yes, 2023
In this paper, we study the complex symmetry of weighted composition-differentiation operator $D_{n, \psi, \phi}$ on weighted Bergman spaces $\mathcal{A}^2_{\alpha}$ with respect to the conjugation $C_{\mu, \eta}$ for $\mu, \eta \in \{z\in \mathbb{C}:|z|=
Pal, Subhadip   +2 more
core   +1 more source

Bounded composition operator on Lorentz spaces

open access: yes, 2020
We study composition operators on Lorentz spaces. In particular, we obtain necessary and sufficient conditions under which a measurable mapping induces a bounded composition operator.
Evseev N.A.
core   +2 more sources

Effect of Delta Operator on Umbral Composition in Finite Operator calculus [PDF]

open access: yes, 2016
The main objective of this paper is to propose the matrix representation of umbral composition and investigate the effect of delta operator on umbral composition by using the sequential representation of delta operator in finite operator ...
Elango, C, Maheswaran, A
core   +1 more source

The induced generalized OWA operator (WP) [PDF]

open access: yes, 2013
[spa] Se presenta el operador OWA generalizado inducido (IGOWA). Es un nuevo operador de agregación que generaliza al operador OWA a través de utilizar las principales características de dos operadores muy conocidos como son el operador OWA generalizado ...
Merigó Lindahl, José M.   +1 more
core   +2 more sources

Composition operator induced by ?(z) = sz + t for which |s|?1, |t|<1 and |s|+|t|?1

open access: yesمجلة بغداد للعلوم, 2010
We study in this paper the composition operator that is induced by ?(z) = sz + t. We give a characterization of the adjoint of composiotion operators generated by self-maps of the unit ball of form ?(z) = sz + t for which |s|?1, |t|
Baghdad Science Journal
doaj   +1 more source

An approach to elliptic equations with nonlinear gradient terms via a modulation framework

open access: yesBulletin of Mathematical Sciences, 2023
We consider a class of nonhomogeneous elliptic equations with fractional Laplacian and nonlinear gradient terms, namely [Formula: see text] in [Formula: see text], where [Formula: see text], [Formula: see text] is the nonlinearity, [Formula: see text ...
Lucas C. F. Ferreira, Wender S. Lagoin
doaj   +1 more source

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