Results 71 to 80 of about 1,776 (211)
Upper semicontinuity of automorphism groups
Mathematische Annalen, 1994 The authors prove striking results on upper semicontinuity of automorphism groups. They show, for example, that if pairs \((M_j, G_j)\) \((M_j\) connected complex manifolds and \(G_j\) subgroups of \(\Aut (M_j))\) converge on compacta to a pair \((M,G)\), where \(M\) is a hyperbolic complex manifold and \(G\) is a subgroup of \(\Aut (M)\), then \(G_j\)
Fridman, Buma L., Poletsky, Evgeny A.
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A strong quantitative form of the fractional isoperimetric inequality
Journal of the London Mathematical Society, Volume 113, Issue 6, June 2026.Abstract We show a strong version of the fractional quantitative isoperimetric inequality, in which the isoperimetric deficit controls not only the Fraenkel asymmetry but also a sort of oscillation of the boundary. This generalizes the local result by Fusco and Julin in [22].
Eleonora Cinti +2 more
wiley +1 more source
Optimal control problems with upper semicontinuous Hamiltonians [PDF]
, 2010 In this paper we give examples of value functions in Bolza problem that are not bilateral or viscosity solutions and an example of a smooth value function that is even not a classic solution (in particular, it can be neither the viscosity nor the ...
Misztela, Arkadiusz
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The Wu metric is not upper semicontinuous [PDF]
Proceedings of the American Mathematical Society, 2007 In this article a question asked in [\textit{M. Jarnicki} and \textit{P. Pflug}, Proc. Am. Math. Soc. 133, 239--244 (2005; Zbl 1051.32009)] is discussed, namely: Are the Wu metrics, associated to the Azukawa and the Kobayashi metric, respectively, upper semicontinuous?
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Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
A generalization of Rader's utility representation theorem [PDF]
Rader's utility representation theorem guarantees the existence of an upper semicontinuous utility function for any upper semicontinuous total preorder on a second countable topological space.
Bosi, Gianni, Zuanon, Magalì
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Approximate Selections and Fixed Points for Upper Semicontinuous Maps with Decomposable Values [PDF]
, 1986 We prove the existence of continuous approximate selections of upper semicontinuous maps from a separable locally compact metric space S S into the decomposable subsets of L 1
Giovanni Colombo +6 more
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A viability result for second-order differential inclusions
Electronic Journal of Differential Equations, 2002 We prove a viability result for the second-order differential inclusion $$ x''in F(x,x'),quad (x(0), x'(0))=(x_0,y_0)in Q:=Kimes Omega, $$ where $K$ is a closed and $Omega$ is an open subsets of $mathbb{R}^m$, and is an upper semicontinuous set-valued ...
Vasile Lupulescu
doaj
Fixed point index approach for solutions of variational inequalities
International Journal of Mathematics and Mathematical Sciences, 2005 By using fixed point index approach for multivalued mappings, the existence of nonzero solutions for a class of generalized variational inequalities is studied in reflexive Banach space.
Yisheng Lai, Yuanguo Zhu, Yinbing Deng
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Existence of Order-Preserving Functions for Nontotal Fuzzy Preference Relations under Decisiveness
Axioms, 2017 Looking at decisiveness as crucial, we discuss the existence of an order-preserving function for the nontotal crisp preference relation naturally associated to a nontotal fuzzy preference relation.
Paolo Bevilacqua +2 more
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