O. Togni

activity

20102026

most citedOn Packing Colorings of Distance Graphs

38 citations · 61 across the 21 of their papers we have counts for

collaborators

Showing 2010Show all

3 papers · 1 filter

cs.DM2010★ 38 cited

On Packing Colorings of Distance Graphs

Olivier Togni

The {\em packing chromatic number} $χ_{ρ} (G)$ of a graph $G$ is the least integer $k$ for which there exists a mapping $f$ from $V (G)$ to ${1, 2, \dots, k}$ such that any two vertic…

cs.DM2010★ 2 cited

Extended core and choosability of a graph

Yves Aubry, Godin Jean-Christophe, Togni Olivier

A graph $G$ is $(a, b)$ -choosable if for any color list of size $a$ associated with each vertices, one can choose a subset of $b$ colors such that adjacent vertices are colored with…

math.CO2010★ 1 cited

Choosability of a weighted path and free-choosability of a cycle

Yves Aubry, Jean-Christophe Godin, Olivier Togni

A graph $G$ with a list of colors $L (v)$ and weight $w (v)$ for each vertex $v$ is $(L, w)$ -colorable if one can choose a subset of $w (v)$ colors from $L (v)$ for each vertex $v$ , suc…