# Parameter: acyclic chromatic number

Definition:

The acyclic chromatic number of a graph $G$ is the smallest size of a vertex partition $\{V_1,\dots,V_l\}$ such that each $V_i$ is an independent set and for all $i,j$ that graph $G[V_i\cup V_j]$ does not contain a cycle.

## Relations

Minimal/maximal is with respect to the contents of ISGCI. Only references for direct bounds are given. Where no reference is given, check equivalent parameters.

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## Problems

Problems in italics have no summary page and are only listed when ISGCI contains a result for the current parameter.

3-Colourability Unknown to ISGCI [+]Details
Clique XP [+]Details
Clique cover Unknown to ISGCI [+]Details
Colourability Unknown to ISGCI [+]Details
Domination Unknown to ISGCI [+]Details
Feedback vertex set Unknown to ISGCI [+]Details
Graph isomorphism Unknown to ISGCI [+]Details
Hamiltonian cycle Unknown to ISGCI [+]Details
Hamiltonian path Unknown to ISGCI [+]Details
Independent set Unknown to ISGCI [+]Details
Maximum cut Unknown to ISGCI [+]Details
Monopolarity Unknown to ISGCI [+]Details
Polarity Unknown to ISGCI [+]Details
Weighted clique XP [+]Details
Weighted feedback vertex set Unknown to ISGCI [+]Details
Weighted independent set Unknown to ISGCI [+]Details