Results 61 to 70 of about 1,218,583 (226)
Net-Compact Hausdorff Topologies and Continuous Multi-Utility Representations for Closed Preorders
AxiomsIn this paper, we deal with continuous multi-utility representations for closed preorders. We introduce the definition of a net-compact topology, which generalizes the concept of a sequentially compact topology.
Gianni Bosi +2 more
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Approximation and Schur properties for Lipschitz free spaces over compact metric spaces
, 2015 We prove that for any separable Banach space $X$, there exists a compact metric space which is homeomorphic to the Cantor space and whose Lipschitz-free space contains a complemented subspace isomorphic to $X$.
Hájek, Petr +2 more
core
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 be properly contained in the class of C C -compact spaces. It is also shown, using a construction of Goss and Viglino, that these spaces need not be seminormal.
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Finite products of filters that are compact relative to a class of filters
Applied General Topology, 2007 Filters whose product with every countable based countably compact filter is countably compact are characterized.
Francis Jordan +2 more
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Finite Unions of D-Spaces and Applications of Nearly Good Relation
Discrete Dynamics in Nature and Society, 2013 Some results are obtained on finite unions of D-spaces. It is proved that if a space is the union of finitely many locally compact D-subspaces, then it is a D-space. It follows that a space is a D-space if it is the union of finitely many locally compact
Xin Zhang, Hongfeng Guo, Yuming Xu
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The Open Limit Point Compactness
Journal of Kufa for Mathematics and Computer, 2014 In this paper, we gave a new topological concept and we called it the open limit point compactness.We have proved that each of the compactness, and the limit point compactness is stronger than of the open limit point compactness., that is, compactness ...
AbedalHamza Mahdi Hamza
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Novel Classes of Bipolar Soft Generalized Topological Structures: Compactness and Homeomorphisms
Fuzzy Information and EngineeringThe purpose of this paper is to define bipolar soft generalized compact sets and bipolar soft generalized compact spaces. The structures of g~~-centralized bipolar soft generalized closed sets collection in a bipolar soft generalized compact space are ...
Hind Y. Saleh +2 more
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Compactness in approximation spaces [PDF]
Colloquium Mathematicum, 1994 Summary: We give a characterization of the relatively compact subsets of the so- called approximation spaces. We treat some applications: (1) we obtain some convergence results in such spaces, and (2) we establish a condition for relative compactness of a set lying in a Besov space.
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The existence of one-point connectifications
, 2017 P. Alexandroff proved that a locally compact $T_2$-space has a $T_2$ one-point compactification (obtained by adding a "point at infinity") if and only if it is non-compact.
Koushesh, M. R.
core
Performance Analysis of Large-Scale Digital Phased Array Mixed-ADC Receiver in Compact Space
天地一体化信息网络In order to evaluate the performance of large-scale digital phased array mixed-ADC receivers under the influence of mutual coupling effects in compact spaces, a performance analysis method was proposed.
ZHANG Yi +5 more
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