Ramsey Results for Cycle Spectra
Ramsey Results for Cycle Spectra
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拉姆齐循环光谱结果
DOI:
10.1002/jgt.21704
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发表时间:
2013
影响因子:
0.9
通讯作者:
D. Rautenbach
中科院分区:
文献类型:
--
作者:
S. Brandt;Felix Joos;Janina Müttel;D. Rautenbach
Let C(G) denote the set of lengths of cycles of a graph G of order n and let G¯ denote the complement of G. We show that if n≥6 , then C(G)∪C(G¯) contains all odd ℓ with 3≤ℓ≤co and all even ℓ with 4≤ℓ≤ce , where co and ce denote the maximum odd and the maximum even integer in C(G)∪C(G¯) , respectively. From this we deduce that the set C(G)∪C(G¯) contains at least 2n3−2 integers, which is sharp.