Research Article

A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces

Number: 54 March 30, 2026

A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces

Abstract

This paper introduces a novel fixed point theorem in the context of $\Delta$-symmetric quasi-metric spaces, providing valuable insights into the existence of fixed points for mappings in these spaces. $\Delta$-symmetric quasi-metric spaces extend conventional metric spaces by relaxing the symmetry condition, allowing for a more flexible and generalized representation of distance. The paper presents a comprehensive theoretical framework that establishes clear and sufficient conditions under which fixed points of self-maps in such spaces are guaranteed, thereby enriching the existing theory of fixed points.

Keywords

References

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  3. I. Altun, G. Mınak, M. Olgun, Classification of completeness of quasi metric space and some fixed point results, Nonlinear Functional Analysis and Applications 22 (2) (2017) 371–384.
  4. S. Cobzaş, Completeness in quasi-metric spaces and Ekeland variational principle, Topology and its Applications 158 (8) (2011) 1073–1084.
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  7. E. Karapınar, S. Romaguera, P. Tirado, Characterizations of quasi-metric and $G$-metric completeness involving $w$-distances and fixed points, Demonstratio Mathematica 55 (1) (2022) 939–951.
  8. E. Karapınar, A. F. Roldan Lopez de Hierro, B. Samet, Matkowski theorems in the context of quasi-metric spaces and consequences on $G$-metric spaces, Analele ştiintifice ale Universitatii ``Ovidius'' Constanta. Seria Matematica 24 (1) (2016) 309–333.

Details

Primary Language

English

Subjects

Topology

Journal Section

Research Article

Publication Date

March 30, 2026

Submission Date

February 27, 2026

Acceptance Date

March 29, 2026

Published in Issue

Year 2026 Number: 54

APA
Durmaz Güngör, G., & Altun, İ. (2026). A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces. Journal of New Theory, 54, 56-67. https://doi.org/10.53570/jnt.1899188
AMA
1.Durmaz Güngör G, Altun İ. A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces. JNT. 2026;(54):56-67. doi:10.53570/jnt.1899188
Chicago
Durmaz Güngör, Gonca, and İshak Altun. 2026. “A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces”. Journal of New Theory, nos. 54: 56-67. https://doi.org/10.53570/jnt.1899188.
EndNote
Durmaz Güngör G, Altun İ (March 1, 2026) A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces. Journal of New Theory 54 56–67.
IEEE
[1]G. Durmaz Güngör and İ. Altun, “A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces”, JNT, no. 54, pp. 56–67, Mar. 2026, doi: 10.53570/jnt.1899188.
ISNAD
Durmaz Güngör, Gonca - Altun, İshak. “A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces”. Journal of New Theory. 54 (March 1, 2026): 56-67. https://doi.org/10.53570/jnt.1899188.
JAMA
1.Durmaz Güngör G, Altun İ. A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces. JNT. 2026;:56–67.
MLA
Durmaz Güngör, Gonca, and İshak Altun. “A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces”. Journal of New Theory, no. 54, Mar. 2026, pp. 56-67, doi:10.53570/jnt.1899188.
Vancouver
1.Gonca Durmaz Güngör, İshak Altun. A Fixed Point Theorem on $\Delta$-Symmetric Quasi-Metric Spaces. JNT. 2026 Mar. 1;(54):56-67. doi:10.53570/jnt.1899188

 

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