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新疆大学数学与系统科学学院
Published:2009
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[1]韩英.关于3-可选平面图的一点注记(英文)[J].新疆大学学报(自然科学版),2009,26(03):281-283.
韩英. 关于3-可选平面图的一点注记(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2009, 26(3): 281-283.
[1]韩英.关于3-可选平面图的一点注记(英文)[J].新疆大学学报(自然科学版),2009,26(03):281-283. DOI:
韩英. 关于3-可选平面图的一点注记(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2009, 26(3): 281-283. DOI:
图G=(V
E)称为L-可染的
如果对给定的列表L={L(v):v∈V(G)}
存在图G的一个正常染色c
满足c(v)∈L(v).如果对任何|L(v)|≥k的列表
图G都是L-可染的
则称图G为k-可选的.本文我们证明了平面图不含4圈
5圈
7圈和三角形距离小于2是3-可选的.
A graph G =(V
E) is L-colorable if for a given list assignment L = {L(v):v∈V(G)}
there exists a proper coloring c of G such that c(v)∈L(v) for all v∈V.If G is L-colorable for every list assignment L with |L(v)|≥k for all v∈V
then G is said to be k-choosable.In this paper
we prove that every planar graph with neither 4-
5-
and 7-cycles nor triangles at distance less than 2 is 3-choosable.
Alon N,Tarsi M.Colorings and orientations of graphs[J].Conbinatorica,1992,12(2):125-134.
Thomassen C.3-list-coloring planar graphs of girth 5[J].J Combin Theory Ser B,1995,64:101-107.
Lam P C B,Shiu W C,Song Z M.The 3-choosability of plane graphs of girth 4[J].Discrete Math,2005,294:297-301.
Zhang H,Xu B,Sun Z.Every plane graph with girth at least 4 without 8-and 9-cycles is 3-choosable[J].Ars Combin, 2006,80:247-257.
Wang Y,Lu H,Chen M.A note on 3-choosability of planar graphs[J].Information Processing Letters,2008,105:206-211.
Montassier M,Raspaud A,Wang W.Bordeaux 3-color conjecture and 3-choosability[J].Discrete Math,2006,306:573-579.
Zhang H,Sun Z.On 3-choosability of planar graphs without certain cycles[J].Information Processing Letters,2008,107: 102-106.
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