2 papers
math.CO2025
Acyclic dichromatic number of oriented graphs
Jørgen Bang-Jensen, Lucas Picasarri-Arrieta, Anders Yeo
The dichromatic number of a digraph is the minimum number of sets in a partition of into subsets so that the induced subdigraph $D[…
math.CO2025
Vertex-partitions of 2-edge-colored graphs
Jørgen Bang-Jensen, Francois Pirot, Anders Yeo
A {\bf -majority coloring} of a digraph is a coloring of with colors so that each vertex has at least as many out-neighbours of color differe…