\([r,s,t]\)-chromatic numbers and hereditary properties of graphs
The first two authors introduced \([r,s,t]\)-colorings of graphs in [Discrete Math. 307, No. 2, 199--207 (2007; Zbl 1115.05033)]. In the current paper the authors prove several results concerning the graphs \(G\) with \(\chi _{r,s,t}(G)=k\) when \(k\leq 3\) or \(\max \{r,s,t\}=1\).
scientific article; zbMATH DE number 5130452