Results 21 to 30 of about 285,370 (322)
Equivalents of maximum principles for several spaces
Topological Algebra and its Applications, 2022 According to our long-standing Metatheorem, certain maximum theorems can be equivalently reformulated to various types of fixed point theorems, and conversely.
Park Sehie
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Preservation of completeness under mappings in asymmetric topology
Applied General Topology, 2000 The preservation of various completeness properties in the quasi-metric (and quasi-uniform) setting under open, closed and uniformly open mappings is investigated.
Hans-Peter A. Künzi
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Uniformization of quasi-uniform spaces [PDF]
Bulletin of the Australian Mathematical Society, 1981 This paper considers the question of when a quasi-uniform space has a compatible uniform structure. Typical of the sufficient conditions provided is the result that a quasi-uniform space whose conjugate topology is compact and R0 is uniformizable.
Raghavan, T. G., Reilly, I. L.
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Quasi‐uniform convergence in dynamical systems generated by an amenable group action [PDF]
Journal of the London Mathematical Society, 2016 We study the Weyl pseudometric associated with an action of a countable amenable group on a compact metric space. We prove that the topological entropy and the number of minimal subsets of the closure of an orbit are both lower semicontinuous with ...
Martha Lacka, Marta Straszak
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Lebesgue quasi-uniformity on textures
Applied General Topology, 2015 This is a continuation of the work where the notions of Lebesgue uniformity and Lebesgue quasi uniformity in a texture space were introduced. It is well known that the quasi uniform space with a compact topology has the Lebesgue property. This result is
Selma Ozcag
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UNIQUE FIXED POINT THEOREMS FOR CONTRACTIVE MAPS TYPE IN T 0 -QUASI-METRIC SPACES [PDF]
, 2014 In [2], Agyingi proved that every generalized contractive mapping defined in a q-spherically complete T 0 -ultra-quasi-metric space has a unique fixed point.
Yae ́ Ulrich Gaba
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Duality and quasi-normability for complexity spaces
Applied General Topology, 2002 The complexity (quasi-metric) space was introduced in [23] to study complexity analysis of programs. Recently, it was introduced in [22] the dual complexity (quasi-metric) space, as a subspace of the function space [0,) ω. Several quasi-metric properties
Salvador Romaguera, M.P. Schellekens
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Some Properties of Fuzzy Quasimetric Spaces
International Journal of Mathematics and Mathematical Sciences, 2010 Some properties of fuzzy quasimetric spaces are studied. We prove that the topology induced by any 0𝑥0005𝑒𝑀-complete fuzzy-quasi-space is a 0𝑥0005𝑒𝑑-complete quasimetric space. We also prove Baire's theorem, uniform limit theorem, and second countability
Abdul Mohamad
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Omnidirectional Quasi-Orthogonal Space–Time Block Coded Massive MIMO Systems [PDF]
IEEE Communications Letters, 2018 Common signals in public channels of cellular systems are usually transmitted omnidirectionally from the base station (BS). In recent years, both discrete and consecutive omnidirectional space–time block codings (STBC) have been proposed for massive ...
Can Liu +4 more
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Quasi-uniform hyperspaces of compact subsets
, 1998 Let (X,u) be a quasi-uniform space, K(X) be the family of all nonempty compact subsets of (X,u). In this paper, the notion of compact symmetry for (X,u) is introduced, and relationships between the Bourbaki quasi-uniformity and the Vietoris topology on K(
Jiling Cao +3 more
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