All These Approximate Ramsey Properties
All These Approximate Ramsey Properties
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所有这些近似拉姆齐属性
DOI:
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Aristotelis
中科院分区:
文献类型:
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作者:
Nadav Meir;Aristotelis
We consider finitary approximations of the (embedding) Ramsey property. Using a class of homogeneous reducts of random ordered hypergraphs, we prove that these properties form a strict hierarchy. We also show that every class of finite structures in which every structure of size at most 2 is a"Ramsey object"essentially consists of ordered structures, generalising a known result for countable Ramsey classes.