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arXiv · 2005.13355

Farthest Point Problem and Partial Statistical Continuity in Normed Linear Spaces

Sumit Som·Lakshmi Kanta Dey·Sudeshna Basu
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Abstract

In this paper, we prove that if $E$ is a uniquely remotal subset of a real normed linear space $X$ such that $E$ has a Chebyshev center $c \in X$ and the farthest point map $F:X\rightarrow E$ restricted to $[c,F(c)]$ is partially statistically continuous at $c$, then $E$ is a singleton. We obtain a necessary condition on uniquely remotal subsets of uniformly rotund Banach spaces to be a singleton. Moreover, we show that there exists a remotal set $M$ having a Chebyshev center $c$ such that the farthest point map $F:\mathbb{R}\rightarrow M$ is not continuous at $c$ but is partially statistically continuous there in the multivalued sense.

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Sumit Som, Lakshmi Kanta Dey, Sudeshna Basu. 2020-05-27. Farthest Point Problem and Partial Statistical Continuity in Normed Linear Spaces. https://arxiv.org/abs/2005.13355

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