Rainbow triangles in three-colored graphs
Rainbow triangles in three-colored graphs
复制标题
三色图中的彩虹三角形
DOI:
10.1016/j.jctb.2017.04.002
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Michael Young
中科院分区:
文献类型:
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作者:
J. Balogh;Ping Hu;Bernard Lidický;Florian Pfender;Jan Volec;Michael Young
Erdős and Sós proposed the problem of determining the maximum number F (n) of rainbow triangles in 3-edge-colored complete graphs on n vertices. They conjectured that F (n)= F (a)+ F (b)+ F (c)+ F (d)+ a b c+ a b d+ a c d+ b c d, where a+ b+ c+ d= n and a, b, c, d are as equal as possible. We prove that the conjectured recurrence holds for sufficiently large n. We also prove the conjecture for n= 4 k for all k≥ 0. These results imply that lim F (n)(n 3)= 0.4, and determine the unique limit object. In the proof we use flag algebras combined with stability arguments.
DOI:
10.1017/s0963548314000820
发表时间:
2014
期刊:
Combinatorics, Probability and Computing
影响因子:
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作者:
BALOGH J
通讯作者:
BALOGH J