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Tambov University Reports. Series: Natural and Technical Sciences, 2017, Volume 22, Issue 3, Pages 565–570
DOI: https://doi.org/10.20310/1810-0198-2017-22-3-565-570
(Mi vtamu114)
 

Scientific articles

On convergence in the space of closed subsets of a metric space

E. A. Panasenko

Tambov State University named after G.R. Derzhavin
References:
Abstract: We consider the space ${\rm clos}(X)$ of closed subsets of unbounded (not necessarily separable) metric space $(X, \varrho_{_X})$ endowed with the metric $\rho_{_X}^{\rm cl}$ introduced in [Zhukovskiy E.S., Panasenko E.A. // Fixed Point Theory and Applications. 2013:10]. It is shown that if any closed ball in the space $(X, \varrho_{_X})$ is totaly bounded,
then convergence in the space $\left({\rm clos}(X), \rho_{_X}^{\rm cl}\right)$ of a sequence $\{F_i\}_{i=1}^\infty$ to $F$ is equivalent to convergence in the sense of Wijsman, that is to convergence for each $x \in X$ of the distances $\varrho_{_X}(x, F_i)$ to $\varrho_{_X}(x, F).$
Keywords: space of closed subsets of a metric space, Wijsman convergence, metrizability.
Funding agency Grant number
Russian Foundation for Basic Research 17-01-00553
16-01-00386
The work is partially supported by the Russian Fund for Basic Research (projects № 17-01-00553, № 16-01-00386).
Received: 15.02.2017
Document Type: Article
UDC: 515.124
Language: Russian
Citation: E. A. Panasenko, “On convergence in the space of closed subsets of a metric space”, Tambov University Reports. Series: Natural and Technical Sciences, 22:3 (2017), 565–570
Citation in format AMSBIB
\Bibitem{Pan17}
\by E.~A.~Panasenko
\paper On convergence in the space of closed subsets of a metric space
\jour Tambov University Reports. Series: Natural and Technical Sciences
\yr 2017
\vol 22
\issue 3
\pages 565--570
\mathnet{http://mi.mathnet.ru/vtamu114}
\crossref{https://doi.org/10.20310/1810-0198-2017-22-3-565-570}
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