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DP-4-Colorability on Planar Graphs Excluding 7-Cycles Adjacent to 4- or 5-Cycles

In order to resolve Borodin’s Conjecture, DP-coloring was introduced in 2017 to extend the concept of list coloring. In previous works, it is proved that every planar graph without 7-cycles and butterflies is DP-4-colorable. And any planar graph that does not have 5-cycle adjacent to 6-cycle is DP-4...

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Bibliografske podrobnosti
Principais autores: Fan Yang, Xiangwen Li, Ziwen Huang
Format: Artigo
Jezik:Inglês
Izdano: MDPI AG 2025-01-01
Serija:Mathematics
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Online dostop:https://www.mdpi.com/2227-7390/13/2/190
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