Structural theorem on plane graphs with application to the entire coloring number
Structural theorem on plane graphs with application to the entire coloring number
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DOI:
10.1002/(sici)1097-0118(199611)23:3
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发表时间:
1996-11
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影响因子:
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通讯作者:
O. Borodin
中科院分区:
文献类型:
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作者:
O. Borodin
In 1973, Kronk and Mitchem (Discrete Math.(5) 255–260) conjectured that the vertices, edges and faces of each plane graph G may be colored with D(G) + 4 colors, where D(G) is the maximum degree of G, so that any two adjacent or incident elements receive distinct colors. They succeeded in verifying this for D(G) = 3. A structural theorem on plane graphs is proved in the present paper which implies the validity of this conjecture for all D(G) ≥ 7. © 1996 John Wiley & Sons, Inc.