1-planar Graphs without 4-cycles or 5-cycles are 5-colorable
Li-li SONG, Lei SUN
Acta Mathematicae Applicatae Sinica(English Series) ›› 2022, Vol. 38 ›› Issue (1) : 169-176.
1-planar Graphs without 4-cycles or 5-cycles are 5-colorable
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