Results 11 to 20 of about 2,948,048 (205)

Integration of compact set-valued functions [PDF]

open access: yesPacific Journal of Mathematics, 1975
provided by applying the McShane ^-integral. This integral is a Riemann-type integral and includes the Bochner, Lebesgue and other types of integrals, and by using Riemann sums it avoids deep measure theory. Thus, the ^-integral of set-valued functions contains other types of integrals such as the Hukuhara and Debreu integrals. Generalizations of known
Artstein, Zvi, Burns, John A.
openaire   +3 more sources

Topologically Transitive and Mixing Properties of Set-Valued Dynamical Systems

open access: yesAbstract and Applied Analysis, 2021
We introduce and study two properties of dynamical systems: topologically transitive and topologically mixing under the set-valued setting. We prove some implications of these two properties for set-valued functions and generalize some results from a ...
Koon Sang Wong, Zabidin Salleh
doaj   +1 more source

Spaces of Set-Valued Functions [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
If X X and Y Y are topological spaces, the set of all continuous functions from X X into C Y CY , the space of nonempty, compact subsets of Y Y with the finite topology, contains a copy (with singleton sets substituted for points) of
openaire   +1 more source

Set-Valued Additive Functional Equations

open access: yesConstructive Mathematical Analysis, 2019
In this paper, we  introduce  set-valued additive  functional equations and prove the Hyers-Ulam stability of the  set-valued additive  functional equations by using the fixed point method.
Choonkil Park   +3 more
openaire   +4 more sources

Fixed points of set-valued mappings satisfying a Banach orbital condition

open access: yesCubo, 2023
In this note, we prove a fixed point existence theorem for set-valued functions by extending the usual Banach orbital condition concept for single valued mappings.
Raúl Fierro, Sergio Pizarro
doaj   +1 more source

Polynomial set-valued functions [PDF]

open access: yesAnnales Polonici Mathematici, 1996
The author gives the notion of a polynomial set-valued function for a multifunction defined on a cone and having its values in the collection of convex compact subsets of a topological vector space. The criterion for a multifunction to be a polynomial set-valued function of order at most 2 is proved.
openaire   +2 more sources

Selections of generalized convex set-valued functions satisfying some inclusions

open access: yesJournal of Mathematical Analysis and Applications, 2019
The main purpose of this article is to determine the existence of a unique selection of convex set-valued functions satisfying some generalized set-valued inclusions.
H. Khodaei
semanticscholar   +1 more source

Continuum-wise expansiveness and specification for set-valued functions and topological entropy [PDF]

open access: yes, 2015
We define the concept of continuum wise expansive for set-valued functions and prove that if a compact metric space admit a set-valued $cw$-expansive function then the topological entropy of $X$ is positive.} We also introduce the notion of pointwise ...
W. Cordeiro, Maria Jos'e Pac'ifico
semanticscholar   +1 more source

Bumping algorithm for set-valued shifted tableaux [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We present an insertion algorithm of Robinson–Schensted type that applies to set-valued shifted Young tableaux. Our algorithm is a generalization of both set-valued non-shifted tableaux by Buch and non set-valued shifted tableaux by Worley and Sagan.
Takeshi Ikeda   +2 more
doaj   +1 more source

On Lipschitzian operators of substitution generated by set-valued functions [PDF]

open access: yesOpuscula Mathematica, 2007
We consider the Nemytskii operator, i.e., the operator of substitution, defined by \((N \phi)(x):=G(x,\phi(x))\), where \(G\) is a given multifunction. It is shown that if \(N\) maps a Hölder space \(H_{\alpha}\) into \(H_{\beta}\) and \(N\) fulfils the ...
Jakub Jan Ludew
doaj  

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