Results 71 to 80 of about 7,013 (297)

Operators commuting with complex symmetric weighted composition operators on H 2

open access: yesConcrete 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

Differences of Weighted Composition Operators on Hα∞(BN)∗

open access: yesJournal of Inequalities and Applications, 2009
We study the boundedness and compactness of differences of weighted composition operators on weighted Banach spaces in the unit ball of CN.
Jineng Dai, Caiheng Ouyang
doaj   +1 more source

Weighted composition operators [PDF]

open access: yes, 2005
This thesis contains some results on weighted composition operators on weighted Hardy spaces of the open unit disk D of the complex plane. If ψ is an analytic map on the open unit disk and ϕ an analytic map from the open unit disk into itself, the ...
Gunatillake, Gajath K
core  

Unbounded weighted composition operators in $L^{2}$-spaces [PDF]

open access: yes, 2018
This book establishes the foundations of the theory of bounded and unbounded weighted composition operators in L²-spaces. It develops the theory in full generality, meaning that the weighted composition operators under consideration are not regarded as ...
Jung, Il Bong   +7 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Eigenfunctions of the Weighted Composition Operators

open access: yesJournal of Mathematical Extension, 2011
In the present paper, we characterize the eigenfunctions of a weighted composition operator on space of holomorphic function on the unit ...
H. Rezaei
doaj  

Binormal Weighted Composition Operators on the Fock Space

open access: yesJournal of Function Spaces
The aim of this paper is to obtain the sufficient and necessary conditions for weighted composition operators uCφ with φz=az+b a≤1, uz=ced¯z, where a,b,c,d∈ℂ, to be binormal or quasinormal on the Fock space F2. Surprisingly, the normality, quasinormality,
Cao Jiang, Shi-an Han
doaj   +1 more source

Compact and Fredholm weighted composition operators [PDF]

open access: yes, 2010
The study of weighted composition operators on various function spaces has received considerable attention in past decades. Characterizations, which usually involve interplay of symbol functions, for certain types of weighted composition operators have ...
Lo, Ching On
core  

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

On the stability index for weighted composition operators

open access: yesJournal of Approximation Theory, 2010
An operator \(S:C(X)\to C(Y)\) is said to be a weighted composition operator (denoted \(S\in \mathbf {WCM}(X,Y)\)) if there exists \(a\in C(Y)\) and a map \(h:Y\to X\), continuous on \(\{y\in Y: a(y)\not=0\}\), such that \((Sf)(y)= a(y) f(h(y))\) for every \(f\in C(X)\) and \(y\in Y\). For \(\varepsilon\geq0\), the linear operator \(T:C(X)\to C(Y)\) is
Jesús Araujo, Juan J. Font
openaire   +2 more sources

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