Displaying similar documents to “Topology of B -metric spaces”

Coincidence of Vietoris and Wijsman Topologies: A New Proof

Holá, L’. (1997)

Serdica Mathematical Journal

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Let (X, d) be a metric space and CL(X) the family of all nonempty closed subsets of X. We provide a new proof of the fact that the coincidence of the Vietoris and Wijsman topologies induced by the metric d forces X to be a compact space. In the literature only a more involved and indirect proof using the proximal topology is known. Here we do not need this intermediate step. Moreover we prove that (X, d) is boundedly compact if and only if the bounded Vietoris and Wijsman topologies...

Vector-valued sequence space B M C ( X ) and its properties

Qing-Ying Bu (1996)

Commentationes Mathematicae Universitatis Carolinae

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In this paper, a vector topology is introduced in the vector-valued sequence space BMC ( X ) and convergence of sequences and sequentially compact sets in BMC ( X ) are characterized.