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math.CO2019
Achromatic number, achromatic index and diachromatic number of circulant graphs and digraphs
Gabriela Araujo-Pardo, Juan Jos{\' e} Montellano-Ballesteros, Mika Olsen +1
In this paper, we determine the achromatic and diachromatic numbers of some circulant graphs and digraphs each one with two lengths and give bounds for other circulant graphs and d…
math.CO2019
On the packing chromatic number of Moore graphs
Julián Fresán-Figueroa, Diego González-Moreno, Mika Olsen
The \emph{packing chromatic number } of a graph is the smallest integer for which there exists a vertex coloring such that an…