Results 11 to 20 of about 244,362 (298)
Journal of High Energy Physics, 2017 37 pages, 1 figure, 2 appendices; minor corrections and reference ...
Sebastian Schwieger +3 more
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On Compactness and Sequential Compactness [PDF]
Proceedings of the American Mathematical Society, 1976 Let X X be a compact space of cardinality less than or equal to ℵ 1 {\aleph _1} . It is shown that X X is sequentially compact.
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Image Saliency Detection Combining Sparse Reconstruction and Compactness
Jisuanji kexue yu tansuo, 2020 Aiming at the problem that existing image saliency detection algorithms can't correctly detect salient objects in complex environments, this paper proposes a method combining sparse reconstruction error and the compactness of image salient regions to ...
ZHANG Yingying, GE Hongwei
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Compactness and local compactness in hyperspaces
Topology and its Applications, 2002 In their interesting paper the authors treat compactness and relative compactness of subsets of hyperspaces, where the hyperspaces are considered to be equipped with the Vietoris, the Wijsman and partly the Hausdorff metric topology. Included in the paper are also characterizations of local compactness with respect to the mentioned hyperspace ...
COSTANTINI, Camillo, S. LEVI, J. PELANT
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The European Physical Journal C, 2017 We study a family of Maxwell-Higgs models, described by the inclusion of a function of the scalar field that represent generalized magnetic permeability. We search for vortex configurations which obey first-order differential equations that solve the equations of motion.
Bazeia, D. +4 more
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On Countable Compactness and Sequential Compactness [PDF]
Proceedings of the American Mathematical Society, 1984 If a countably compact T 3 {T_3} space X X can be expressed as a union of less then c c many first countable subspaces, then MA implies that X X is sequentially compact.
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Neither ordinary nor global: a reflection on the ‘extra-ordinary’ expansion of Athens
Urban, Planning and Transport Research, 2014 As part of the debate on Mediterranean urbanities in between ‘ordinary’ and ‘global’ cities, the present paper proposes a reflection on Athens’ long-term expansion seen as a paradigmatic example of urban development in southern Europe.
Luca Salvati
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Certain Notions of Neutrosophic Topological K-Algebras
Mathematics, 2018 The concept of neutrosophic set from philosophical point of view was first considered by Smarandache. A single-valued neutrosophic set is a subclass of the neutrosophic set from a scientific and engineering point of view and an extension of ...
Muhammad Akram +3 more
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Essentially compact foliations that are not compact [PDF]
Tohoku Mathematical Journal, 2004 A foliation is called essentially compact if the set of noncompact leaves has zero Lebesgue measure. The author considers the qualitative behaviour of essentially compact foliations that are not compact. He shows the following theorem: There exists a \(C^{\infty}\) essentially compact foliation of a compact manifold such that the closure of the set of ...
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Application of the averaging method to the problems of optimal control of the impulse systems
Karpatsʹkì Matematičnì Publìkacìï, 2020 The problem of optimal control at finite time interval for a system of differential equations with impulse action at fixed moments of time as well as the corresponding averaged system of ordinary differential equations are considered. It is proved the
T.V. Koval'chuk +3 more
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