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Russian Universities Reports. Mathematics, 2020, Volume 25, Issue 129, Pages 18–24
DOI: https://doi.org/10.20310/2686-9667-2020-25-129-18-24
(Mi vtamu167)
 

This article is cited in 6 scientific papers (total in 6 papers)

Scientific articles

On coincidence points of mappings in generalized metric spaces

T. V. Zhukovskayaa, W. Merchelab, A. I. Shindyapinc

a Tambov State Technical University
b Derzhavin Tambov State University
c Eduardo Mondlane University
Full-text PDF (462 kB) Citations (6)
References:
Abstract: Let $X$ be a space with $\infty$-metric $\rho$ (with possibly infinite value) and $Y$ a space with $\infty$-distance $d$ satisfying the identity axiom. We consider the problem of the coincidence point for the mappings $F,G:X \to Y$ of the existence of the solution for the equation $F(x)=G(x).$ We provide conditions of the existence of the coincidence points in terms of the covering set for the mapping $F$ and the Lipschitz set for the mapping $G$ in the space $X\times Y.$ The $\alpha$-covering set ($\alpha > 0$) of the mapping $F$ — is the set of such $(x,y),$ that
$$\exists u\in X \ F(u)=y, \ \ \rho(x,u)\leq \alpha^{-1}d(F(x),y), \ \ \rho(x,u)<\infty,$$
and the $\beta$- Lipschitz set ($\beta\geq 0$) for the mapping $G$ — is the set of such $(x,y),$ that
$$ \forall u\in X\,\, G(u)=y \, \Rightarrow \, d(y,G(x))\leq \beta \rho(u,x).$$
The new results are compared with the known theorems about the coincidence points.
Keywords: coincidence point of two mappings, metric, distance, covering mapping.
Funding agency Grant number
The work is partially supported by the UEM-SIDA 2017-2022 (Subprogramme № 1.4.2: Capacity Building in Mathematics, Statistics and Its Applications).
Received: 23.12.2019
Document Type: Article
UDC: 517.988.6, 515.124.2
Language: Russian
Citation: T. V. Zhukovskaya, W. Merchela, A. I. Shindyapin, “On coincidence points of mappings in generalized metric spaces”, Russian Universities Reports. Mathematics, 25:129 (2020), 18–24
Citation in format AMSBIB
\Bibitem{ZhuMerShi20}
\by T.~V.~Zhukovskaya, W.~Merchela, A.~I.~Shindyapin
\paper On coincidence points of mappings in generalized metric spaces
\jour Russian Universities Reports. Mathematics
\yr 2020
\vol 25
\issue 129
\pages 18--24
\mathnet{http://mi.mathnet.ru/vtamu167}
\crossref{https://doi.org/10.20310/2686-9667-2020-25-129-18-24}
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  • This publication is cited in the following 6 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Russian Universities Reports. Mathematics
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