Results 11 to 20 of about 18,351 (76)

Topological structure of solution sets of differential inclusions: the constrained case

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 6, Page 325-351, 2003., 2003
We survey and announce some current results on the existence, the viability, and the topological structure of the viable solutions of differential equations and inclusion in Banach spaces under set constraints. Some new results concerning semilinear differential inclusions with state variables constrained to the so‐called regular and strictly regular ...
Wojciech Kryszewski
wiley   +1 more source

Uniformly bounded Nemytskij operators acting between the Banach spaces of generalized Hölder functions

open access: yes, 2017
We investigate the Nemytskij (composition, superposition) operators acting between Banach spaces of -times differentiable functions defined on the closed intervals of the real line with the -derivatives satisfying a generalized Hölder condition. The main
M. Lupa, Małgorzata Wróbel
semanticscholar   +1 more source

Existence of extremal periodic solutions for quasilinear parabolic equations

open access: yesAbstract and Applied Analysis, Volume 2, Issue 3-4, Page 257-270, 1997., 1997
In this paper we consider a quasilinear parabolic equation in a bounded domain under periodic Dirichlet boundary conditions. Our main goal is to prove the existence of extremal solutions among all solutions lying in a sector formed by appropriately defined upper and lower solutions.
Siegfried Carl
wiley   +1 more source

Locally Defined Operators and Locally Lipschitz Composition Operators in the Space WBVp(·)([a, b])

open access: yes, 2016
We give a neccesary and sufficient condition on a function such that the composition operator (Nemytskij Operator) H defined by acts in the space and satisfies a local Lipschitz condition.
J. A. Guerrero, O. Mejía, N. Merentes
semanticscholar   +1 more source

Uniformly Bounded Set-Valued Composition Operators in the Spaces of Functions of Bounded Variation in the Sense of Riesz

open access: yes, 2015
We show that the lateral regularizations of the generator of any uniformly bounded set-valued composition Nemytskij operator acting in the spaces of functions of bounded variation in the sense of Riesz, with nonempty bounded closed and convex values, are
W. Aziz, N. Merentes
semanticscholar   +1 more source

Uniformly continuous set-valued composition operators in the spaces of functions of bounded variation in the sense of Riesz

open access: yes, 2010
We show that the lateral regularizations of the generator of any uniformly bounded set-valued composition Nemytskij operator acting in the spaces of functions of bounded variation in the sense of Riesz, with nonempty bounded closed and convex values, are
W. Aziz, J. A. Guerrero, N. Merentes
semanticscholar   +1 more source

Weighted Differentiation Composition Operator from Logarithmic Bloch Spaces to Zygmund-Type Spaces

open access: yes, 2014
Let denote the space of all holomorphic functions on the unit disk of , and let n be a positive integer, a holomorphic self-map of , and a weight. In this paper, we investigate the boundedness and compactness of a weighted differentiation composition ...
H. Qu, Yongmin Liu, Shulei Cheng
semanticscholar   +1 more source

On the Closed Range Weighted Composition–Differentiation Operator

open access: yesComplex Analysis and Operator Theory
We provide a number of conditions which characterize the closed range weighted composition–differentiation operator D(u,ψ,n)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage ...
Tesfa Mengestie
semanticscholar   +1 more source

Fredholm Weighted Composition Operator on Weighted Hardy Space

open access: yes, 2013
This paper gives a unified characterization of Fredholm weighted composition operator on a class of weighted Hardy spaces.
Liankuo Zhao
semanticscholar   +1 more source

Convergence estimates for some composition operators

open access: yesConstructive Mathematical Analysis
There are different methods available in literature to construct a new operator. One of the methods to construct an operator is the composition method.
Vijay Gupta
semanticscholar   +1 more source

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