Maximum density of induced 5-cycle is achieved by an iterated blow-up of 5-cycle
Maximum density of induced 5-cycle is achieved by an iterated blow-up of 5-cycle
复制标题
诱导 5 循环的最大密度是通过 5 循环的迭代吹胀实现的
DOI:
10.1016/j.ejc.2015.08.006
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Florian Pfender
中科院分区:
文献类型:
--
作者:
J. Balogh;Ping Hu;Bernard Lidický;Florian Pfender
Let C (n) denote the maximum number of induced copies of 5-cycles in graphs on n vertices. For n large enough, we show that C (n)= a⋅ b⋅ c⋅ d⋅ e+ C (a)+ C (b)+ C (c)+ C (d)+ C (e), where a+ b+ c+ d+ e= n and a, b, c, d, e are as equal as possible. Moreover, for n a power of 5, we show that the unique graph on n vertices maximizing the number of induced 5-cycles is an iterated blow-up of a 5-cycle. The proof uses flag algebra computations and stability methods.
DOI:
10.1017/s0963548314000820
发表时间:
2014
期刊:
Combinatorics, Probability and Computing
影响因子:
--
作者:
BALOGH J
通讯作者:
BALOGH J