Results 21 to 30 of about 3,221 (259)

A Few Notes on Formal Balls [PDF]

open access: yesLogical Methods in Computer Science, 2017
Using the notion of formal ball, we present a few new results in the theory of quasi-metric spaces. With no specific order: every continuous Yoneda-complete quasi-metric space is sober and convergence Choquet-complete hence Baire in its $d$-Scott ...
Jean Goubault-Larrecq, Kok Min Ng
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

Bourbaki completeness in quasi metric spaces [PDF]

open access: yesJournal of Nonlinear Functional Analysis, 2019
The main purpose of this paper is to define a new type of boundedness in a quasi metric space. We introduce some new notions of completeness by clustering sequences belonging to the classes larger than the classes of Cauchy sequences in some sense. We also obtain some interesting results related to the compactness.
İlkhan, Merve, Kara, Emrah Evren
openaire   +2 more sources

Characterizations of quasi-metric and G-metric completeness involving w-distances and fixed points

open access: yesDemonstratio Mathematica, 2022
Involving ww-distances we prove a fixed point theorem of Caristi-type in the realm of (non-necessarily T1{T}_{1}) quasi-metric spaces. With the help of this result, a characterization of quasi-metric completeness is obtained.
Karapınar Erdal   +2 more
doaj   +1 more source

Fuzzy quasi-b-metric spaces

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2022
In this paper we present a new approach for the fuzzy quasi-b-metric spaces and we obtain some properties of these spaces. A special attention is granted to the decomposition theorems of a fuzzy quasi-b-metric into a right continuous and ascending family
Nădăban Sorin
doaj   +1 more source

Teorema Titik Tetap Pada Ruang Quasi Metrik Terasing Tanpa Menggunakan Sifat Kekontinuan Fungsi

open access: yesJurnal Fourier, 2014
Dislocated quasi metric spaces is spaces with distance function that only satisfies two conditions from four conditions of distance function in metric spaces.
Malahayati Malahayati, Mutia Utami
doaj   +1 more source

ĆIRIĆ-TYPE RESULTS IN QUASI-METRIC SPACES AND 𝐺-METRIC SPACES USING SIMULATION FUNCTION

open access: yesПроблемы анализа, 2022
In this paper, we establish existence of some common fixed-point theorems for admissible mappings via a simulation function along with 𝒞-class functions in quasi-metric spaces.
Sejal V. Puvar, R. G. Vyas
doaj   +1 more source

Some Extensions of Fixed Point Results over Quasi-JS-Spaces

open access: yesJournal of Function Spaces, 2016
We introduce the notion of quasi-JS-metric space. After defining the basic topological properties of quasi-JS-metric space, we investigate fixed point of certain mapping in the frame of complete quasi-JS-metric space.
Maha Noorwali   +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

Some aspects of Isbell-convex quasi-metric spaces

open access: yesApplied General Topology, 2018
We introduce and investigate the concept of geodesic bicombing in T0-quasi-metric spaces. We prove that any Isbell-convex T0-quasi-metric space admits a geodesic bicombing which satisfies the equivariance property.
Olivier Olela Otafudu
doaj   +1 more source

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