English

Path-Connectedness of the Hyperspace of Compact Subsets of $\mathbb{R}^n$

General Topology 2022-01-19 v1

Abstract

When one considers the collection H(Rn)\mathcal{H}(\mathbb{R}^n) of all compact subsets of Rn\mathbb{R}^n and equip it with a topology, many questions can be asked about the topological space one ends up with. This is an example of a hyperspace, a mathematical object which has been studied in a more abstract setting since the beginning of the 20th century. Here we give an elementary proof of the path-connectedness of H(Rn)\mathcal{H}(\mathbb{R}^n), with the topology induced by the Hausdoff metric, by exploring the vector structure of Rn\mathbb{R}^n and using only basic ideas of topology of metric spaces that undergraduate students with just a basic knowledge of these concepts will be able to understand.

Keywords

Cite

@article{arxiv.2201.06369,
  title  = {Path-Connectedness of the Hyperspace of Compact Subsets of $\mathbb{R}^n$},
  author = {Bryant Rosado Silva and Rodney Josué Biezuner},
  journal= {arXiv preprint arXiv:2201.06369},
  year   = {2022}
}