The circular chromatic number of induced subgraphs
The circular chromatic number of induced subgraphs
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DOI:
10.1016/j.jctb.2004.03.007
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发表时间:
2004-09
期刊:
影响因子:
--
通讯作者:
Xuding Zhu
中科院分区:
文献类型:
--
作者:
Xuding Zhu
This note presents an infinite family of graphs G for which χc(G)=4 and for each vertex x of G, χc(G−x)=8/3. This gives a negative answer to a question asked in Zhu (Discrete Math. 229 (1–3) (2001) 371).