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:
--
复制
发表时间:
1994
期刊:
J. Comb. Theory B
影响因子:
--
通讯作者:
B. Mohar
B. Mohar
中科院分区:
--
文献类型:
--
作者:
S. Fisk;B. Mohar

文献摘要

被引文献

相似文献

证明了存在一个常数c使得如果G是一个嵌入在亏格g(可定向或不可定向)曲面上的图,且G的一个最短无界圈的长度至少为clog(g+1),则G是六色的。在对G的周长作额外假设的情况下,类似的结果也适用于三色和四色。
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.