Injective choosability of planar graphs of girth five and six
Injective choosability of planar graphs of girth five and six
复制标题
周长五和六的平面图的内射可选择性
DOI:
10.1016/j.disc.2011.10.029
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发表时间:
2012-03
影响因子:
0.8
通讯作者:
许宝刚
中科院分区:
文献类型:
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作者:
李锐;许宝刚
An injective k-coloring of a graph G is an assignment of k colors to V(G) such that vertices having a common neighbor receive distinct colors. We study the list version of injective colorings of planar graphs. Let χil(G) and mad(G) be the injective choosability number and the maximum average degree of G, respectively. It is proved that (1) for each graph G with mad(G)<103, χil(G)≤Δ(G)+4 if Δ(G)≥30 (this conditionally improves some results of Doyon et al. (2010) [9] and Lužar et al. (2009) [11]), χil(G)≤Δ(G)+5 if Δ(G)≥18, and χil(G)≤Δ(G)+6 if Δ(G)≥14; (2) χil(G)≤Δ(G)+2 if mad(G)<3 and Δ(G)≥12 (this conditionally improves a result of Doyon et al. (2010) [9]).
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DOI:
10.1016/j.disc.2009.06.029
发表时间:
2009-12
期刊:
Discret. Math.
影响因子:
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作者:
O. Borodin;A. Ivanova
通讯作者:
O. Borodin;A. Ivanova
DOI:
10.1016/j.tcs.2021.01.007
发表时间:
2021-02
期刊:
Theor. Comput. Sci.
影响因子:
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作者:
Y. Bu;Chentao Qi;Junlei Zhu;Ting Xu
通讯作者:
Y. Bu;Chentao Qi;Junlei Zhu;Ting Xu
DOI:
10.1057/jors.1977.45
发表时间:
1978-03
期刊:
--
影响因子:
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作者:
E. Lloyd;J. Bondy;U. Murty
通讯作者:
E. Lloyd;J. Bondy;U. Murty
影响因子:
0.8
作者:
Borodin, O. V.;Ivanova, A. O.
通讯作者:
Ivanova, A. O.
DOI:
10.1016/j.disc.2009.04.020
发表时间:
2010-02
期刊:
Discret. Math.
影响因子:
--
作者:
A. Doyon;G. Hahn;A. Raspaud
通讯作者:
A. Doyon;G. Hahn;A. Raspaud