Results 1 to 10 of about 1,776 (211)

Maximal Classes For Lower And Upper Semicontinuous Strong Świątkowski Functions [PDF]

open access: yesDemonstratio Mathematica, 2014
In this paper, we characterize the maximal additive and multiplicative classes for lower and upper semicontinuous strong Świątkowsk functions and lower and upper semicontinuous extra strong Świątkowski functions.
Szczuka Paulina
doaj   +7 more sources

Upper Semicontinuous Representations of Semiorders as Interval Orders [PDF]

open access: yesAxioms
We characterize the upper semicontinuous representability of a semiorder ≺ as an interval order (namely, by a pair (u,v) of upper semicontinuous real-valued functions) on a topological space with a countable basis of open sets, where one of the ...
Gianni Bosi   +2 more
doaj   +4 more sources

Upper Semicontinuous Extensions of Binary Relations [PDF]

open access: yesSSRN Electronic Journal, 2002
The notion of consistency in binary relations is considered. The authors provide sufficient conditions for the existence of upper semicontinuous extensions of consistent rather than transitive relations. For asymmetric relations, consistency and upper semicontinuity suffice.
BOSSERT, Walter   +2 more
core   +11 more sources

(τ1,τ2)δ-semicontinuous multifunctions [PDF]

open access: yesHeliyon, 2020
The purpose of the present article is to introduce the concepts of upper and lower (τ1,τ2)δ-semicontinuous multifunctions. Some characterizations of upper and lower (τ1,τ2)δ-semicontinuous multifunctions are investigated.
Chawalit Boonpok
doaj   +2 more sources

Upper semicontinuous utilities for all upper semicontinuous total preorders [PDF]

open access: yesMathematical Social Sciences
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bosi G., Sbaiz G.
openaire   +4 more sources

Regular and singular perturbations of upper semicontinuous differential inclusion [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In the paper we study the continuity properties of the solution set of upper semicontinuous differential inclusions in both regularly and singularly perturbed case.
Tzanko Donchev, Vasil Angelov
doaj   +2 more sources

Iterative roots of upper semicontinuous multifunctions [PDF]

open access: yesAdvances in Difference Equations, 2017
The square iterative roots for strictly monotonic and upper semicontinuous functions with one set-valued point were fully described in (Li et al. in Publ. Math. (Debr.) 75:203-220, 2009).
Pingping Zhang, Liguo Huang
doaj   +2 more sources

Upper Semicontinuous Collections of Continua in Class W [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
A continuum is proven to be in Class W W if it can be decomposed into an upper semicontinuous collection of
C. Wayne Proctor
openaire   +4 more sources

Cone Lattices of Upper Semicontinuous Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
Let X X be a compact metric space. A well-known theorem of M. H. Stone states that if
Gerald Beer
openaire   +4 more sources

On a time-dependent subdifferential evolution inclusion with a nonconvex upper-semicontinuous perturbation [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2005
We investigate the existence of local approximate and strong solutions for a time-dependent subdifferential evolution inclusion with a nonconvex upper-semicontinuous perturbation.
S. Guillaume, A. Syam
doaj   +2 more sources

Home - About - Disclaimer - Privacy