Results 31 to 40 of about 11,703 (241)

Dynamics of plate equations with time delay driven by additive noise in R n $\mathbb{R}^{n}$

open access: yesJournal of Inequalities and Applications, 2023
This paper is concerned with the asymptotic behavior of solutions for plate equations with delay blurred by additive noise in R n $\mathbb{R}^{n}$ . First, we obtain the uniform compactness of pullback random attractors of the problem, then derive the ...
Xiaobin Yao
doaj   +1 more source

Upper semicontinuous decompositions of developable spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1965
Presented here are theorems concerning upper semicontinuous decompositions of developable spaces, topological in the sense that the common parts of intersecting domains (open sets) are open. Theorem 1 shows that, if the elements of such a decomposition do not have nonbicompact [I] intersections with the closures of their complements, the decomposition ...
openaire   +2 more sources

Normal Hyperbolicity and Continuity of Global Attractors for a Nonlocal Evolution Equations

open access: yesInternational Journal of Differential Equations, 2014
We show the normal hyperbolicity property for the equilibria of the evolution equation ∂m(r,t)/∂t=-m(r,t)+g(βJ*m(r,t)+βh),  h,β≥0, and using the normal hyperbolicity property we prove the continuity (upper semicontinuity and lower semicontinuity) of the ...
Severino Horácio da Silva   +2 more
doaj   +1 more source

On the Wu metric in unbounded domains

open access: yes, 2007
We discuss the properties of the Wu pseudometric and present counterexamples for its upper semicontinuity that answers the question posed by Jarnicki and Pflug.
Jucha, Piotr
core   +1 more source

Calculus and heat flow in metric measure spaces and applications to spaces with Ricci bounds from below [PDF]

open access: yes, 2012
This paper is devoted to a deeper understanding of the heat flow and to the refinement of calculus tools on metric measure spaces (X,d,m). Our main results are: - A general study of the relations between the Hopf-Lax semigroup and Hamilton-Jacobi ...
A. Grigor’yan   +33 more
core   +2 more sources

On separation axioms of uniform bundles and sheaves

open access: yesApplied General Topology, 2004
In the context of the theory of uniform bundles in the sense of J. Dauns and K. H. Hofmann, the topology of the fiber space of a uniform bundle depends on the assumption of upper semicontinuity of its defining set of pseudometrics when composed with ...
Clara M. Neira U., Januario Varela
doaj   +1 more source

The lower semicontinuity of the Frobenius splitting numbers [PDF]

open access: yes, 2010
We show that, under mild conditions, the (normalized) Frobenius splitting numbers of a local ring of prime characteristic are lower semicontinuous.Comment: 13 pages, revised version, to appear in Mathematical Proceedings of the Cambridge Philosophical ...
Enescu, Florian, Yao, Yongwei
core   +2 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 Ω \Omega is a vector lattice of continuous functions on X X that separates points and contains a nonzero constant function, then the uniform closure of Ω \Omega is C ...
openaire   +2 more sources

Upper semicontinuous utilities for all upper semicontinuous total preorders

open access: yesMathematical Social Sciences
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bosi G., Sbaiz G.
openaire   +3 more sources

Upper Semicontinuous Decompositions of the n-Sphere [PDF]

open access: yesProceedings of the American Mathematical Society, 1962
We consider conditions under which an upper semicontinuous decomposition has the decomposition space which is a topological nsphere. A special emphasis is placed on the case in which the decomposition has only a countable number of nondegenerate elements.
openaire   +2 more sources

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