English

Uniqueness of the hyperspaces $C(p,X)$ in the class of trees

General Topology 2019-11-11 v1

Abstract

Given a continuum XX and pXp\in X, we will consider the hyperspace C(p,X)C(p,X) of all subcontinua of XX containing pp. Given a family of continua C\mathcal{C}, a continuum XCX\in\mathcal{C} and pXp\in X, we say that (X,p)(X,p) has unique hyperspace C(p,X)C(p,X) relative to C\mathcal{C} if for each YCY\in\mathcal{C} and qYq\in Y such that C(p,X)C(p,X) and C(q,Y)C(q,Y) are homeomorphic, then there is an homeomorphism between XX and YY sending pp to qq. In this paper we study some topological and geometric properties about the structure of C(p,X)C(p,X) when XX is a tree, being the main result that (X,p)(X,p) has unique hyperspace C(p,X)C(p,X) relative to the class of trees.

Keywords

Cite

@article{arxiv.1908.06202,
  title  = {Uniqueness of the hyperspaces $C(p,X)$ in the class of trees},
  author = {Florencio Corona-Vázquez and Russell Aarón Quiñones-Estrella and Javier Sánchez-Martínez and Rosemberg Toalá-Enríquez},
  journal= {arXiv preprint arXiv:1908.06202},
  year   = {2019}
}

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17 pages