Isaak H. Wolf

collaborators

2 papers

math.CO2023

Sets of $r$ -graphs that color all $r$ -graphs

Yulai Ma, Davide Mattiolo, Eckhard Steffen +1

An $r$ -regular graph is an $r$ -graph, if every odd set of vertices is connected to its complement by at least $r$ edges. Let $G$ and $H$ be $r$ -graphs. An $H$ -coloring of $G$ is a…

math.CO2023

Rotation $r$ -graphs

Eckhard Steffen, Isaak H. Wolf

We study rotation $r$ -graphs and show that for every $r$ -graph $G$ of odd regularity there is a simple rotation $r$ -graph $G^{'}$ such that $G$ can be obtained form $G^{'}$ by a finite n…

Sets of r-graphs that color all r-graphs

Rotation r-graphs

Sets of $r$ -graphs that color all $r$ -graphs

Rotation $r$ -graphs