Off-diagonal book Ramsey numbers
Off-diagonal book Ramsey numbers
复制标题
非对角书拉姆齐数
DOI:
10.1017/s0963548322000360
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Wigderson, Yuval
中科院分区:
文献类型:
--
作者:
Conlon, David;Fox, Jacob;Wigderson, Yuval
The book graph consists of copies of joined along a common . In the prequel to this paper, we studied the diagonal Ramsey number . Here we consider the natural off-diagonal variant for fixed . In this more general setting, we show that an interesting dichotomy emerges: for very small , a simple -partite construction dictates the Ramsey function and all nearly-extremal colourings are close to being -partite, while, for bounded away from , random colourings of an appropriate density are asymptotically optimal and all nearly-extremal colourings are quasirandom. Our investigations also open up a range of questions about what happens for intermediate values of .
DOI:
--
发表时间:
2019
期刊:
Journal of the European Mathematical Society (Print)
影响因子:
--
作者:
D. Mubayi;Jacques Verstraëte
通讯作者:
Jacques Verstraëte
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
S. Brandt
通讯作者:
S. Brandt