Daniel P. Johnston

collaborators

2 papers

math.CO2024

Isolation game on graphs

Boštjan Brešar, Tanja Dravec, Daniel P. Johnston +2

Given a graph $G$ and a family of graphs $F$ , an $F$ -isolating set, as introduced by Caro and Hansberg, is any set $S \subset V (G)$ such that $G - N [S]$ contains no member…

math.CO2023

Orientable total domination in graphs

Sarah E. Anderson, Tanja Dravec, Daniel Johnston +1

Given a directed graph $D$ , a set $S \subseteq V (D)$ is a total dominating set of $D$ if each vertex in $D$ has an in-neighbor in $S$ . The total domination number of $D$ , denoted $…