Coloring Graphs without Short Non-bounding Cycles
Coloring Graphs without Short Non-bounding Cycles
复制标题
没有短无界循环的着色图
DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
B. Mohar
中科院分区:
文献类型:
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作者:
S. Fisk;B. Mohar
It is shown that there is a constant c such that if G is a graph embedded in a surface of genus g (either orientable or non-orientable) and the length of a shortest non-bounding cycle of G is at least c log(g + 1), then G is six-colorable. A similar result holds for three- and four-colorings under additional assumptions on the girth of G.