On the Rainbow Turán number of paths
On the Rainbow Turán number of paths
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关于Rainbow Turán 的路径数
DOI:
10.37236/7889
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Abhishek Methuku
中科院分区:
文献类型:
--
作者:
Beka Ergemlidze;E. Györi;Abhishek Methuku
Let $F$ be a fixed graph. The rainbow Turán number of $F$ is defined as the maximum number of edges in a graph on $n$ vertices that has a proper edge-coloring with no rainbow copy of $F$ (i.e., a copy of $F$ all of whose edges have different colours). The systematic study of such problems was initiated by Keevash, Mubayi, Sudakov and Verstraëte.
In this paper, we show that the rainbow Turán number of a path with $k+1$ edges is less than $\left(9k/7+2\right) n$, improving an earlier estimate of Johnston, Palmer and Sarkar.