English

Open, convex, unbounded sets in normed spaces

Functional Analysis 2017-10-31 v1

Abstract

Let X be a normed linear space. We examine if every open, convex and unbounded subset of X is equal to the union of a family of open straight half lines. The answer is affirmative if and only if X is finite dimensional.

Keywords

Cite

@article{arxiv.1710.10656,
  title  = {Open, convex, unbounded sets in normed spaces},
  author = {D. Moshonas and V. Nestoridis and A. Terezakis},
  journal= {arXiv preprint arXiv:1710.10656},
  year   = {2017}
}

Comments

8 pages, 0 figures

R2 v1 2026-06-22T22:28:58.212Z