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Hypergraph Ramsey numbers of cliques versus stars
被引:1
|作者:
Conlon, David
[1
]
Fox, Jacob
[2
]
He, Xiaoyu
[3
,6
]
Mubayi, Dhruv
[4
]
Suk, Andrew
[5
]
Verstraete, Jacques
[5
]
机构:
[1] CALTECH, Dept Math, Pasadena, CA USA
[2] Stanford Univ, Dept Math, Stanford, CA USA
[3] Princeton Univ, Dept Math, Princeton, NJ USA
[4] Univ Illinois, Dept Math Stat & Comp Sci, Chicago, IL USA
[5] Univ Calif San Diego, Dept Math, La Jolla, CA USA
[6] Princeton Univ, Dept Math, Princeton, NJ 08544 USA
关键词:
Ramsey theory;
hypergraph Ramsey numbers;
stepping up;
probabilistic method;
D O I:
10.1002/rsa.21155
中图分类号:
TP31 [计算机软件];
学科分类号:
081202 ;
0835 ;
摘要:
Let K-m((3)) denote the complete 3-uniform hypergraph on m vertices and S-n((3)) the 3-uniform hypergraph on n + 1 vertices consisting of all ( (n) (2)) edges incident to a given vertex. Whereas many hypergraph Ramsey numbers grow either at most polynomially or at least exponentially, we show that the off-diagonal Ramsey number r(K-4((3)), S-n((3))) exhibits an unusual intermediate growth rate, namely, [GRAPHICS] . for some positive constants c and c'. The proof of these bounds brings in a novel Ramsey problem on grid graphs whichmay be of independent interest: what is the minimum N such that any 2-edge-coloring of the Cartesian product K-N square K-N contains either a red rectangle or a blue K-n?
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页码:610 / 623
页数:14
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