Andrew Wood

collaborators

4 papers

math.GN2026

The Set-Self-Tietze Property

Andrew Wood

We introduce the set-self-Tietze property, an analogue of the self-Tietze property for upper semi-continuous set-valued functions. A topological space $X$ is self-Tietze, if for ev…

math.GR2026

Edge Inversions in $(P_{k})$ -closed Groups

Kirwin Hampshire, Florian Lehner, Andrew Wood

We construct $(P_{2})$ -closed groups acting on $T_{3}$ in which all edge inversions have infinite order. This provides a negative answer to a question posed by Tornier. We also constru…

math.DS2025

Transitivity in CR-Dynamical Systems

Sina Greenwood, Andrew Wood

A CR-dynamical system is a pair $(X, G)$ , where $X$ is a compact metric space and $G$ is a closed relation (CR) on $X$ . In this paper, we introduce a new type of transitive point a…

math.DS2025

Shadowing in CR-Dynamical Systems

Andrew Wood

A CR-dynamical system is a pair $(X, G)$ , where $X$ is a non-empty compact Hausdorff space with uniformity $U$ and $G$ is a closed relation on $X$ . In this paper we intro…

The Set-Self-Tietze Property

Edge Inversions in (Pk​)-closed Groups

Transitivity in CR-Dynamical Systems

Shadowing in CR-Dynamical Systems

Edge Inversions in $(P_{k})$ -closed Groups