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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Ukrainian Mathematic...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Ukrainian Mathematical Journal
Article . 2014 . Peer-reviewed
License: Springer TDM
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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Article . 2014
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Theorems on Inclusion for Multivalued Mappings

Theorems on inclusion for multivalued mappings
Authors: Zelinskii, Yu. B.; Klishchuk, B. A.; Tkachuk, M. V.;

Theorems on Inclusion for Multivalued Mappings

Abstract

Let \(X,Y\) be Banach spaces and \(F:A\rightrightarrows Y\) a set-valued mapping. A restriction of \(F\) to a subset \(B\) of \(A\) is a set-valued mapping \(F_1: B\rightrightarrows Y\) such that \(F_1(x)\subset F(x)\) for all \(x\in B\) and \(F_1(x)=\emptyset\) for all \(x\in A\setminus B\). One says that \(F\) satisfies the coacute angle condition if, for every \(y^*\in Y^*,\,y^*\neq 0\), there exists \(x\in A\) such that Re\(\langle y,y^*\rangle\geq 0\) for all \(y\in F(x)\). If this inequality is strict, then one says that \(F\) satisfies the strict coacute angle condition. The authors prove a result of the following kind. One considers a domain \(D\) in the Euclidean space \(E^n\), a set-valued mapping \(F:\bar D\to E^n\) and \(K\subset \bar D\). If there exists a restriction \(F_1\) of \(F\) to \(K\) satisfying the coacute angle condition such that \(\operatorname{conv}F_1(K)\) is compact and \(\operatorname{conv}F_1(K)\subset F(\bar D)\), then \(0\in F(\bar D)\). If there exists a restriction \(F_1\) satisfying the strict coacute angle condition, then the compactness condition can be dropped. Similar results for set-valued mappings satisfying some metric conditions (called by the authors acute angle \(\varepsilon\)-condition and coacute angle \(\delta\)-condition) are also obtained.

Related Organizations
Keywords

set-valued mapping, solvability of nonlinear equations, Variational and other types of inclusions, Set-valued operators, Set-valued and variational analysis

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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