Christopher Duffy

activity

20142026

most citedA Variation on Chip-Firing: the diffusion game

6 citations · 23 across the 19 of their papers we have counts for

collaborators

Showing 2022Show all

2 papers · 1 filter

cs.DM2022

Homomorphically Full Oriented Graphs

Thomas Bellitto, Christopher Duffy, Gary MacGillivray

Homomorphically full graphs are those for which every homomorphic image is isomorphic to a subgraph. We extend the definition of homomorphically full to oriented graphs in two diff…

math.CO2022★ 1 cited

Switching $m$ -edge-coloured graphs using non-Abelian groups

Chris Duffy, Gary MacGillivray, Ben Tremblay

Let $G$ be a graph whose edges are each assigned one of the $m$ -colours $1, 2, \dots, m$ , and let $Γ$ be a subgroup of $S_{m}$ . The operation of switching at a vertex $x$ with respe…

Homomorphically Full Oriented Graphs

Switching m-edge-coloured graphs using non-Abelian groups

Switching $m$ -edge-coloured graphs using non-Abelian groups