Results 71 to 80 of about 4,438,790 (210)

Minimal KC spaces are compact

open access: yesTopology and its Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. Bella, COSTANTINI, Camillo
openaire   +3 more sources

Sabine River Compact Administration...Annual Report for the Year...

open access: yes, 1998
Annual report for the Sabine River Compact Administration for 1998, including a summary of the meetings and work of the administration, reports from the hydrologic stations, fiscal revenues and expenditures, and accompanying ...
Sabine River Compact Administration
core  

Novel Classes of Bipolar Soft Generalized Topological Structures: Compactness and Homeomorphisms

open access: yesFuzzy Information and Engineering
The 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
doaj   +1 more source

Finite Unions of D-Spaces and Applications of Nearly Good Relation

open access: yesDiscrete 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
doaj   +1 more source

Performance Analysis of Large-Scale Digital Phased Array Mixed-ADC Receiver in Compact Space

open access: yes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
doaj  

A countably compact, separable space which is not absolutely countably compact [PDF]

open access: yes, 1995
summary:We construct a space having the properties in the title, and with the same technique, a countably compact $T_2$ topological group which is not absolutely countably ...
Vaughan, Jerry E.
core   +1 more source

On Weak Compactness in $L_1$ Spaces

open access: yesRocky Mountain Journal of Mathematics, 2009
The Banach space \(Z\) is said to strongly generate the Banach space \(X\) if there exists a \(T\in L(Z,X)\) such that, for every weakly compact set \(W\subset X\) and every \(\varepsilon>0\), there is a natural number \(m\) such that \(W\subset mT(B_Z)+\varepsilon B_X\).
Fabian, M., Montesinos, V., Zizler, V.
openaire   +4 more sources

Some remarks on Pixley-Roy hyperspaces

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
In this paper, we study cellular-compact, cellular-Lindel\"of, strongly star-Hurewicz, strongly star-Rothberger, strongly star-Menger spaces on hyperspaces with the Pixley-Roy topology.
Quoc Tuyen Luong   +2 more
doaj   +1 more source

On θ-regular spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In this paper we study θ-regularity and its relations to other topological properties. We show that the concepts of θ-regularity (Janković, 1985) and point paracompactness (Boyte, 1973) coincide.
Martin M. Kovár
doaj   +1 more source

Continuous functions with compact support

open access: yesApplied General Topology, 2004
The main aim of this paper is to investigate a subring of the ring of continuous functions on a topological space X with values in a linearly ordered field F equipped with its order topology, namely the ring of continuous functions with compact support ...
Sudip Kumar Acharyya   +2 more
doaj   +1 more source

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