Results 101 to 110 of about 73,971 (227)
On semicontinuity of multiplicities in families [PDF]
arXiv, 2019 The paper investigates the behavior of Hilbert-Samuel and Hilbert-Kunz multiplicities in families of ideals. It is shown that Hilbert-Samuel multiplicity is upper semicontinuous almost generally and that Hilbert-Kunz multiplicity is upper semicontinuous in families of finite type.
arxiv
Advances in Mathematical Physics, 2019 In this paper, the existence of random attractors for nonautonomous stochastic reversible Selkov system with multiplicative noise has been proved through Ornstein-Uhlenbeck transformation.
Chunxiao Guo, Yanfeng Guo, Xiaohan Li
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Entropy of partially hyperbolic flows with center dimension two [PDF]
arXiv, 2018 In this article we study the regularity of the topological and metric entropy of partially hyperbolic flows with two-dimensional center direction. We show that the topological entropy is upper semicontinuous with respect to the flow, and we give an example where the lower semicontinuity fails.
arxiv
Characterization of upper semicontinuously integrable functions [PDF]
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1995 AbstractWe show that for a Henstock-Kurzweil integrable functionffor every ∈ > 0 one can choose an upper semicontinuous gage function δ, used in the definition of the HK-integral if and only if |f| is bounded by a Baire 1 function. This answers a question raised by C. E. Weil.
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Homogenisation of dynamical optimal transport on periodic graphs. [PDF]
Calc Var Partial Differ Equ, 2023 Gladbach P +3 more
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R-closedness and Upper semicontinuity
, 2012 Let $\mathcal{F} $ be a pointwise almost periodic decomposition of a compact metrizable space $X$. Then $\mathcal{F} $ is $R$-closed if and only if $\hat{\mathcal{F}} $ is usc. Moreover, if there is a finite index normal subgroup $H$ of an $R$-closed flow $G$ on a compact manifold such that the orbit closures of $H$ consist of codimension $k$ compact ...
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Existence and upper semicontinuity of global attractors for neural fields in an unbounded domain
Electronic Journal of Differential Equations, 2010 In this article, we prove the existence and upper semicontinuity of compact global attractors for the flow of the equation $$ frac{partial u(x,t)}{partial t}=-u(x,t)+ J*(fcirc u)(x,t)+ h, quad h > 0, $$ in $L^{2}$ weighted spaces.
Severino Horacio Da Silva
doaj
Continuity of the Solution Maps for Generalized Parametric Set-Valued Ky Fan Inequality Problems
Journal of Applied Mathematics, 2012 Under new assumptions, we provide suffcient conditions for the (upper and lower) semicontinuity and continuity of the solution mappings to a class of generalized parametric set-valued Ky Fan inequality problems in linear metric space.
Z. Y. Peng, X. B. Li
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Viscosity convex functions on Carnot groups [PDF]
arXiv, 2003 We prove that any locally bounded from below, upper semicontinuous v-convex function in any Carnot group is h-convex.
arxiv
On Upper Semicontinuous Functions [PDF]
Proceedings of the American Mathematical Society, 1950 T. Rado, E. J. Mickle
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