Results 21 to 30 of about 1,317,799 (362)
Ultrafilter convergence in ordered topological spaces [PDF]
, 2014 We characterize ultrafilter convergence and ultrafilter compactness in linearly ordered and generalized ordered topological spaces. In such spaces, and for every ultrafilter $D$, the notions of $D$-compactness and of $D$-pseudocompactness are equivalent.
Lipparini, Paolo
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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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On the Observation of Phase Transitions in Collisions of Elementary Matter [PDF]
, 2000 We investigate the excitation function of directed flow, which can provide a clear signature of the creation of the QGP and demonstrate that the minimum of the directed flow does not correspond to the softest point of the EoS for isentropic expansion.
Dumitru, A. +4 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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Stats, 2021 This paper presents an unsupervised feature selection method for multi-dimensional histogram-valued data. We define a multi-role measure, called the compactness, based on the concept size of given objects and/or clusters described using a fixed number of
Manabu Ichino +2 more
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Singular compactness and definability for $$\Sigma $$-cotorsion and Gorenstein modules [PDF]
, 2018 We introduce a general version of the singular compactness theorem which makes it possible to show that being a $$\Sigma $$-cotorsion module is a property of the complete theory of the module.
J. Šaroch, J. Št’ovíček
semanticscholar +1 more source
Some Compactness Criteria for Weak Solutions of Time Fractional PDEs [PDF]
SIAM Journal on Mathematical Analysis, 2017 The Aubin-Lions lemma and its variants play crucial roles for the existence of weak solutions of nonlinear evolutionary PDEs. In this paper, we aim to develop some compactness criteria that are analogies of the Aubin--Lions lemma for the existence of ...
Lei Li, Jian‐Guo Liu
semanticscholar +1 more source
Maximum mass, moment of inertia and compactness of relativistic stars [PDF]
, 2016 A number of recent works have highlighted that it is possible to express the properties of general-relativistic stellar equilibrium configurations in terms of functions that do not depend on the specific equation of state employed to describe matter at ...
C. Breu, L. Rezzolla
semanticscholar +1 more source
Localized Frames and Compactness [PDF]
, 2015 We introduce the concept of weak-localization for generalized frames and use this concept to define a class of weakly localized operators. This class contains many important operators, including: Short Time Fourier Transform multipliers, Calderon ...
Batayneh, Fawwaz, Mitkovski, Mishko
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Objective constraints of figural goodness [PDF]
Psihologija, 2002 The effects of uniformity, compactness and symmetry on pattern goodness estimates were evaluated in three experiments. Ss were asked to choose the pattern which looks the best in respect to other patterns from given set.
Marković Slobodan S.
doaj +1 more source