Partially normal 5-edge-colorings of cubic graphs
Partially normal 5-edge-colorings of cubic graphs
复制标题
立方图的部分正态 5 边着色
DOI:
10.1016/j.ejc.2021.103327
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发表时间:
2019-11
影响因子:
1
通讯作者:
Yingli Kang
中科院分区:
文献类型:
--
作者:
Ligang Jin;Yingli Kang
In a proper edge-coloring of a cubic graph, an edge e is normal if the set of colors used by the five edges incident with an end of e has cardinality 3 or 5. The Petersen coloring conjecture asserts that every bridgeless cubic graph has a normal 5-edge-coloring, that is, a proper 5-edge-coloring such that all edges are normal. In this paper, we prove a result related to the Petersen coloring conjecture. The parameter μ 3 is a measurement for cubic graphs, introduced by Steffen in 2015. Our result shows that every bridgeless cubic graph G has a proper 5-edge-coloring such that at least| E (G)|− μ 3 (G)(which is no less than 27 35| E (G)|) edges are normal. This result improves on some earlier results of Bílková and Šámal.
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影响因子:
0.9
作者:
G. Mazzuoccolo;V. Mkrtchyan
通讯作者:
G. Mazzuoccolo;V. Mkrtchyan
影响因子:
0.9
作者:
Li-gang Jin;E. Steffen
通讯作者:
Li-gang Jin;E. Steffen
影响因子:
0.9
作者:
E. Steffen
通讯作者:
E. Steffen
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期刊:
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影响因子:
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10.1016/j.ejc.2007.11.029
发表时间:
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Eur. J. Comb.
影响因子:
--
作者:
D. Král;Edita Mácajová;Ondrej Pangrác;A. Raspaud;Jean-Sébastien Sereni;M. Škoviera
通讯作者:
D. Král;Edita Mácajová;Ondrej Pangrác;A. Raspaud;Jean-Sébastien Sereni;M. Škoviera