Results 71 to 80 of about 4,469,777 (359)

Boundedness of composition operators on Morrey spaces and weak Morrey spaces

open access: yesJournal of Inequalities and Applications, 2021
In this study, we investigate the boundedness of composition operators acting on Morrey spaces and weak Morrey spaces. The primary aim of this study is to investigate a necessary and sufficient condition on the boundedness of the composition operator ...
Naoya Hatano   +3 more
doaj   +1 more source

Applied Koopman Operator Theory for Power Systems Technology [PDF]

open access: yesarXiv.org, 2016
Koopman operator is a composition operator defined for a dynamical system described by nonlinear differential or difference equation. Although the original system is nonlinear and evolves on a finite-dimensional state space, the Koopman operator itself ...
Y. Susuki   +3 more
semanticscholar   +1 more source

Computing the resolvent of composite operators [PDF]

open access: yesCubo (Temuco), 2014
AbdellatifMoudafiL.S.I.S, Aix Marseille Universit´e,U.F.R Sciences, Domaine Universitaire de Saint-J´erˆome.Avenue Escadrille Normandie-Niemen,13397 MARSEILLE CEDEX 20,abdellatif.moudafi@lsis.orgABSTRACTBased in a very recent paper by Micchelli et al.
openaire   +5 more sources

Dynamics of weighted composition operators on function spaces defined by local properties

open access: yes, 2019
We study topological transitivity/hypercyclicity and topological (weak) mixing for weighted composition operators on locally convex spaces of scalar-valued functions which are defined by local properties.
Kalmes, Thomas
core   +1 more source

On the closed range problem for composition operators on the Dirichlet space

open access: yesConcrete Operators, 2019
We characterize closed range composition operators on the Dirichlet space for a particular class of composition symbols. The characterization relies on a result about Fredholm Toeplitz operators with BMO1 symbols, and with Berezin transforms of vanishing
Zorboska Nina
doaj   +1 more source

Solution of the inverse spectral problem for a convolution integro-differential operator with Robin boundary conditions

open access: yes, 2015
The operator of double differentiation on a finite interval with Robin boundary conditions perturbed by the composition of a Volterra convolution operator and the differentiation one is considered.
Buterin, S. A., Rivero, A. E. Choque
core   +1 more source

Rewriting the dendritic cell code in cancer—from subset identity to immunotherapeutic design

open access: yesFEBS Letters, EarlyView.
Dendritic cells (DCs) play central roles in cancer immunity but are often subverted by the tumor microenvironment. This review explores the diversity of DC subsets, their functional plasticity, and emerging therapeutic strategies to reprogram DCs for enhanced antitumor responses, including vaccines, in vivo targeting, and DC‐based immunotherapies ...
Estevão Carlos Silva Barcelos   +3 more
wiley   +1 more source

Composition followed by differentiation between weighted Bergman spaces and weighted Banach spaces of holomorphic functions

open access: yesActa Universitatis Sapientiae: Mathematica, 2014
Let Φ be an analytic self-map of the open unit disk D in the complex plane. Such a map induces through composition a linear composition operator CΦ : f ↦ f◦Φ.We are interested in the combination of CΦ with the differentiation operator D, that is in the ...
Wolf Elke
doaj   +1 more source

On the minimal invariant subspaces of the hyperbolic composition operator

open access: yes, 1993
The composition operator induced by a hyperbolic Mobius transform 0 on the classical Hardy space H2 is considered. It is known that the invariant subspace problem for Hilbert space operators is equivalent to the fact that all the minimal invariant ...
Valentin Matache
semanticscholar   +1 more source

Composition of Operators in Orlicz Spaces

open access: yesRocky Mountain Journal of Mathematics, 2008
In this work we find sharp conditions for boundedness on Orlicz spaces of the composition of $j$ operators, each one being of restricted weak type $(p,p)$ for some $p>1$, and of strong type $(\infty,\infty)$. Particularly, we find necessary and sufficient conditions to obtain modular inequalities for the $j$-times composition of the Cesaro Maximal ...
Bongioanni, B., Harboure, E.
openaire   +3 more sources

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