Results 11 to 20 of about 285,370 (322)

Nonstandard methods of completing quasi-uniform spaces

open access: yesTopology and Its Applications, 1995
A rather general method of constructing T2-completions of a quasi-uniform space is given. Using it we show that a sufficient condition for a quasi-uniform space to have a T2-completion is that the quasi-uniformity contains a compatible uniformity.
Hermann Render
exaly   +3 more sources

Infinite games and quasi-uniform box products

open access: yesApplied General Topology, 2019
We introduce new infinite games, played in a quasi-uniform space, that generalise the proximal game to the framework of quasi-uniform spaces.  We then introduce bi-proximal spaces, a concept that generalises proximal spaces to the quasi-uniform setting ...
Hope Sabao, Olivier Olela Otafudu
doaj   +3 more sources

Lens Antenna Arrays for THz Superconducting HEB Mixers: A Review and a Metasurface Coupling Approach [PDF]

open access: yesSensors
Terahertz hot electron bolometer (HEB) mixers, which offer the highest sensitivity in the frequency range above 1.5 THz, are equipped on space observatories to detect the terahertz radiation emitted from the interstellar medium within galaxies.
Yuner Gan   +4 more
doaj   +2 more sources

Fuzzy chaotic centred quasi-uniform space

open access: yesMalaya Journal of Matematik, 2021
In this paper, the concept of fuzzy chaotic centred pre-distinctiveness space, fuzzy chaotic centred distinctiveness space, fuzzy chaotic centred filter base, fuzzy chaotic centred quasi-uniform structure, fuzzy chaotic centred quasi-uniform space, fuzzy ...
R. Malathi, M. Uma
semanticscholar   +1 more source

Completeness in Quasi-Pseudometric Spaces—A Survey

open access: yesMathematics, 2020
The aim of this paper is to discuss the relations between various notions of sequential completeness and the corresponding notions of completeness by nets or by filters in the setting of quasi-metric spaces.
Ştefan Cobzas
doaj   +1 more source

Stratified \((L,M)\)-fuzzy quasi-uniform spaces

open access: yesComputers & Mathematics with Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abbas, S.E.
openaire   +2 more sources

Τ-quasi-Cauchy spaces - a non-symmetric theory of completeness and completion

open access: yesApplied General Topology, 2023
Based on the concept of Cauchy pair Τ-filters, we develop an axiomatic theory of completeness for non-symmetric spaces, such as Τ-quasi-uniform (limit) spaces or L-metric spaces.
Gunther Jäger
doaj   +1 more source

On precompact (quasi-) uniform structures

open access: yes, 1977
The following are shown: (1) The subbasis theorem on precompactness does not hold even in uniform spaces. (2) The supremum of (even finitely many) precompact quasi-uniform structures is not necessarily precompact. (3) A compact quasi-uniform space is not
P. Lambrinos
semanticscholar   +2 more sources

On uniformly locally compact quasi-uniform hyperspaces [PDF]

open access: yes, 2004
summary:We characterize those Tychonoff quasi-uniform spaces $(X,\mathcal {U})$ for which the Hausdorff-Bourbaki quasi-uniformity is uniformly locally compact on the family $\mathcal {K}_{0}(X)$ of nonempty compact subsets of $X$. We deduce, among other
Künzi, H. P. A.   +7 more
core   +2 more sources

Weak completeness of the Bourbaki quasi-uniformity

open access: yesApplied General Topology, 2001
The concept of semicompleteness (weaker than half-completeness) is defined for the Bourbaki quasi-uniformity of the hyperspace of a quasi-uniform space.
M.A. Sánchez Granero
doaj   +1 more source

Home - About - Disclaimer - Privacy