English

Farthest Point Problem and Partial Statistical Continuity in Normed Linear Spaces

Functional Analysis 2020-05-28 v1

Abstract

In this paper, we prove that if EE is a uniquely remotal subset of a real normed linear space XX such that EE has a Chebyshev center cXc \in X and the farthest point map F:XEF:X\rightarrow E restricted to [c,F(c)][c,F(c)] is partially statistically continuous at cc, then EE 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 MM having a Chebyshev center cc such that the farthest point map F:RMF:\mathbb{R}\rightarrow M is not continuous at cc but is partially statistically continuous there in the multivalued sense.

Cite

@article{arxiv.2005.13355,
  title  = {Farthest Point Problem and Partial Statistical Continuity in Normed Linear Spaces},
  author = {Sumit Som and Lakshmi Kanta Dey and Sudeshna Basu},
  journal= {arXiv preprint arXiv:2005.13355},
  year   = {2020}
}

Comments

8 pages

R2 v1 2026-06-23T15:51:10.756Z