Results 11 to 20 of about 77,924 (297)

Quasi-metric and metric spaces [PDF]

open access: yesConformal Geometry and Dynamics of the American Mathematical Society, 2006
We give a short review of a construction of Frink to obtain a metric space from a quasi-metric space. By an example we illustrate the limits of the construction.
Schroeder, Viktor
openaire   +6 more sources

Recursive quasi-metric spaces

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brattka, Vasco
openaire   +3 more sources

Generated quasi-metric hyper and function spaces

open access: yesTopology and its Applications, 2003
The author introduces the concept of a generated quasi-metric (it is noteworthy that the definition of quasi-metric used here differs from the usual definition which states that if \(x!=y\) then \(d(x,y)>0\)) space \((X,Y,d)\): \((X,d)\) is a quasi-metric space and \(Y\) is a subset of \(X\) such that each \(x \in X\) is the infinum of a sequence of ...
Brattka, Vasco
openaire   +3 more sources

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

On Neutrosophic Triplet quasi–dislocated-b-metric space [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
The concept of neutrosophic triplet firstly introduced by F. Smarandache and M. Ali [28]. This notion (neutrosophic triplet) is a group of three elements that satisfy certain properties with some binary operation.
Anuradha, Seema Mehra
doaj   +1 more source

Common Fixed Point Results on Generalized Weak Compatible Mapping in Quasi-Partial b-Metric Space

open access: yesJournal of Mathematics, 2021
The focus of this paper is to acquaint with generalized condition (B) in a quasi-partial b-metric space and to establish coincidence and common fixed point theorems for weakly compatible pairs of mapping.
Pragati Gautam   +3 more
doaj   +1 more source

UNIQUE FIXED POINT THEOREMS FOR CONTRACTIVE MAPS TYPE IN T 0 -QUASI-METRIC SPACES [PDF]

open access: yes, 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
core   +1 more source

Duality and quasi-normability for complexity spaces

open access: yesApplied 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
doaj   +1 more source

Fixed Point Results in Fuzzy Strong Controlled Metric Spaces with an Application to the Domain Words

open access: yesAdvances in Mathematical Physics, 2023
In this manuscript, we introduce the notions of fuzzy strong controlled metric spaces, fuzzy strong controlled quasi-metric spaces, and non-Archimedean fuzzy strong controlled quasi-metric spaces and generalize the famous Banach contraction principle. We
Aftab Hussain   +2 more
doaj   +1 more source

Some Fixed-Point Theorems on Quasi M-Metric Spaces [PDF]

open access: yesITM Web of Conferences
In this paper, it will be discussed a metric that is constructed based on a quasi M-metric and a new definition of Cauchy sequences in quasi M-metric spaces.
Darojad Rofiud, Indrati Christiana Rini
doaj   +1 more source

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