Results 11 to 20 of about 1,776 (211)

On Choquet theorem for random upper semicontinuous functions

open access: yesInternational Journal of Approximate Reasoning, 2007
Let \((\Omega ,{\mathcal A},P)\) be a probability space, \(E\) a Hausdorff, locally compact and second countable topological space, and \(\mathcal U\) the family of all upper semicontinuous (u.s.c., for short) functions \(f:E\to [0,1]\). Using hypographs, \(\mathcal U\) can be embedded into the space \({\mathcal F}(E\times [0,1])\) of all closed ...
Hung T Nguyen, Yangeng Wang
exaly   +3 more sources

Hausdorff Metric on the Space of Upper Semicontinuous Multifunctions

open access: yesRocky Mountain Journal of Mathematics, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ľubica Holá
exaly   +4 more sources

On the Borel Classes of Set-Valued Maps of Two Variables

open access: yesAnnales Mathematicae Silesianae, 2020
Using the Borel classification of set-valued maps, we present here some new results on set-valued maps which are similar to some of the well known theorems on functions due to Lebesgue and Kuratowski.
Holá Ľubica, Kwiecińska Grażyna
doaj   +1 more source

Fixed point theorems and applications in p-vector spaces

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2023
The goal of this paper is to develop new fixed points for quasi upper semicontinuous set-valued mappings and compact continuous (single-valued) mappings, and related applications for useful tools in nonlinear analysis by applying the best approximation ...
George Xianzhi Yuan
doaj   +1 more source

On upper semicontinuity of duality mappings [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We give new sufficient conditions for a Banach space to be an Asplund (or reflexive) space in terms of certain upper semicontinuity of the duality mapping.
Contreras, Manuel D., Payá, Rafael
openaire   +1 more source

A simple characterization of the existence of upper semicontinuous order-preserving functions [PDF]

open access: yes, 2023
We introduce an upper semicontinuity condition concerning a not necessarily total preorder on a topological space, namely strong upper semicontinuity, and in this way we extend to the nontotal case the famous Rader’s theorem,which guarantees the ...
Gianni Bosi, Laura Franzoi
core   +1 more source

On the structure of completely useful topologies

open access: yesApplied General Topology, 2002
Let X be an arbitrary set. Then a topology t on X is completely useful if every upper semicontinuous linear preorder on X can be represented by an upper semicontinuous order preserving  real-valued function.
Gianni Bosi, Gerhard Herden
doaj   +1 more source

Upper Semicontinuity of Attractors and Synchronization

open access: yesJournal of Mathematical Analysis and Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carvalho, Alexandre N   +2 more
openaire   +2 more sources

On the upper semicontinuity of Choquet capacities

open access: yesInternational Journal of Approximate Reasoning, 2010
The distribution of a random closed set \(X\) in a locally compact second countable Hausdorff space \(E\) is uniquely determined by its capacity functional \(T(K)=\mathbf{P}(X\cap K\neq\emptyset)\) for all \(K\) from the family \(\mathcal{K}\) of compact sets.
Guo Wei 0004   +3 more
openaire   +2 more sources

Subharmonicity without Upper Semicontinuity

open access: yesJournal of Functional Analysis, 1997
Let \(\Omega\subseteq \mathbb{R}^d\) be open and let \(x\in\Omega\). There are many probability measures \(\mu\) with compact support in \(\Omega\) which have the following property: \(u(x)\leq\int u d\mu\) for every subharmonic function \(u\) on \(\Omega\). (Such a measure is called a Jensen measure for \(x\).) Familiar examples are normalized surface
Cole, B.J, Ransford, T.J
openaire   +1 more source

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