Polynomial to exponential transition in Ramsey theory
Polynomial to exponential transition in Ramsey theory
复制标题
拉姆齐理论中的多项式到指数转变
DOI:
10.1112/plms.12320
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发表时间:
2020
影响因子:
1.8
通讯作者:
Razborov, Alexander
中科院分区:
文献类型:
--
作者:
Mubayi, Dhruv;Razborov, Alexander
Given, letbe the minimumsuch that there exist arbitrarily large‐uniform hypergraphswhose independence number is at most polylogarithmic in the number of vertices and in which everyvertices span at mostedges. Erdős and Hajnal conjectured (1972) thatcan be calculated precisely using a recursive formula and Erdős offered $500 for a proof of this. For, this has been settled for many values ofincluding powers of three but it was not known for anyand.Here we settle the conjecture for all. We also answer a question of Bhat and Rödl by constructing, for each, a quasirandom sequence of‐uniform hypergraphs with positive density and upper density at most. This result is sharp.
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DOI:
10.1016/0095-8956(75)90084-2
发表时间:
1975
期刊:
Journal of Combinatorial Theory, Series B
影响因子:
--
作者:
N. Pippenger;M. Golumbic
通讯作者:
M. Golumbic
DOI:
10.1016/j.jctb.2017.04.002
发表时间:
2014
期刊:
J. Comb. Theory B
影响因子:
--
作者:
J. Balogh;Ping Hu;Bernard Lidický;Florian Pfender;Jan Volec;Michael Young
通讯作者:
Michael Young
DOI:
10.1007/978-0-8176-8092-3
发表时间:
2021-06
期刊:
Complexity of Infinite-Domain Constraint Satisfaction
影响因子:
--
作者:
Lane Barton
通讯作者:
Lane Barton
DOI:
10.1016/j.jctb.2018.09.005
发表时间:
2018
期刊:
J. Comb. Theory B
影响因子:
--
作者:
R. Yuster
通讯作者:
R. Yuster
DOI:
10.1016/j.ejc.2015.08.006
发表时间:
2014
期刊:
Eur. J. Comb.
影响因子:
--
作者:
J. Balogh;Ping Hu;Bernard Lidický;Florian Pfender
通讯作者:
Florian Pfender