Results 31 to 40 of about 4,438,790 (210)
Proceedings of the American Mathematical Society, 1989 A new class of H H -closed spaces, herein referred to as the class of adherent compact spaces, is introduced—and shown to ...
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COMPUTABLY COMPACT METRIC SPACES
The Bulletin of Symbolic Logic, 2023 AbstractWe give a systematic technical exposition of the foundations of the theory of computably compact metric spaces. We discover several new characterizations of computable compactness and apply these characterizations to prove new results in computable analysis and effective topology.
Rodney G. Downey, Alexander G. Melnikov
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Beurling-Landau's density on compact manifolds [PDF]
, 2012 Given a compact Riemannian manifold $M$, we consider the subspace of $L^2(M)$ generated by the eigenfunctions of the Laplacian of eigenvalue less than $L\geq1$.
Ortega-Cerdà, Joaquim +2 more
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Compact and extremally disconnected spaces
International Journal of Mathematics and Mathematical Sciences, 2004 Viglino defined a Hausdorff topological space to be C-compact if each closed subset of the space is an H-set in the sense of Veličko. In this paper, we study the class of Hausdorff spaces characterized by the property that each closed subset is an S-set ...
Bhamini M. P. Nayar
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COMPACT-F AND LINDEL o F- C SPACES
Journal of Kufa for Mathematics and Computer, 2010 In this paper, we introduce and study compact-F and Lindelof -C Spaces .Compact-F space is a topological space in which every compact subset is finite, Lindelof-C Space is a topological space in which every Lindelof subsets is countable several ...
Hadi J. Mustafa
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Projectively-compact spinor vertices and space-time spin-locality in higher-spin theory
Physics Letters B, 2022 The concepts of compact and projectively-compact spin-local spinor vertices are introduced. Vertices of this type are shown to be space-time spin-local, i.e., their restriction to any finite subset of fields is space-time local.
M.A. Vasiliev
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On Radon Barycenters of Measures on Spaces of Measures
Известия Иркутского государственного университета: Серия "Математика", 2023 We study metrizability of compact sets in spaces of Radon measures with the weak topology. It is shown that if all compacta in a given completely regular topological space are metrizable, then every uniformly tight compact set in the space of Radon ...
V.I. Bogachev, S.N. Popova
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Transactions of the American Mathematical Society, 1970 A directed space is a partially ordered topological space in which each two elements have a common predecessor. It is a consequence of a theorem of A. D. Wallace that a compact directed space is acyclic if each of its principal ideals is acyclic.
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On generalization of homotopy axiom
Pracì Mìžnarodnogo Geometričnogo Centru, 2023 In [S. Kermit, Proc. Amer. Math. Soc., 1972, 31(1):271-275] it was proven that if G is compact topological group or field then in the homotopy axiom for Alexander-Spanier-Kolmogoroff cohomology the parameter segment [0;1] can be replaced by any compact ...
Umed Karimov
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On the dimension of compact spaces [PDF]
Czechoslovak Mathematical Journal, 1958 In the present paper, for arbitrary m, n, 1 ≦ m ≦ n ≦ ∞ the existence of compact spaces X, Y such that dim X = dim Y = m, ind X = Ind Y = n is proved.
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