Multicolor list Ramsey numbers grow exponentially
Multicolor list Ramsey numbers grow exponentially
复制标题
多色列表拉姆齐数呈指数增长
DOI:
10.1002/jgt.22832
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发表时间:
2022
影响因子:
0.9
通讯作者:
Xu, Max Wenqiang
中科院分区:
文献类型:
--
作者:
Fox, Jacob;He, Xiaoyu;Luo, Sammy;Xu, Max Wenqiang
The list Ramsey number R ℓ ( H , k ) ${R}_{\ell }(H,k)$, recently introduced by Alon, Bucić, Kalvari, Kuperwasser, and Szabó, is a list‐coloring variant of the classical Ramsey number. They showed that if H $H$ is a fixed r $r$‐uniform hypergraph that is not r $r$‐partite and the number of colors k $k$ goes to infinity, e Ω ( k ) ≤ R ℓ ( H , k ) ≤ e O ( k ) ${e}^{{\rm{\Omega }}(\sqrt{k})}\le {R}_{\ell }(H,k)\le {e}^{O(k)}$. We prove that R ℓ ( H , k ) = e Θ ( k ) ${R}_{\ell }(H,k)={e}^{{\rm{\Theta }}(k)}$ if and only if H $H$ is not r $r$‐partite.
影响因子:
0.8
作者:
J. Nesetril;M. Rosenfeld
通讯作者:
M. Rosenfeld
影响因子:
0.9
作者:
Alon, Noga;Bucić, Matija;Kalvari, Tom;Kuperwasser, Eden;Szabó, Tibor
通讯作者:
Szabó, Tibor