MONOID ACTIONS AND ULTRAFILTER METHODS IN RAMSEY THEORY
MONOID ACTIONS AND ULTRAFILTER METHODS IN RAMSEY THEORY
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Ramsey 理论中的幺半群作用和超滤方法
DOI:
10.1017/fms.2018.28
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
SOLECKI, SŁAWOMIR
中科院分区:
文献类型:
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作者:
SOLECKI, SŁAWOMIR
First, we prove a theorem on dynamics of actions of monoids by endomorphisms of semigroups. Second, we introduce algebraic structures suitable for formalizing infinitary Ramsey statements and prove a theorem that such statements are implied by the existence of appropriate homomorphisms between the algebraic structures. We make a connection between the two themes above, which allows us to prove some general Ramsey theorems for sequences. We give a new proof of the Furstenberg–Katznelson Ramsey theorem; in fact, we obtain a version of this theorem that is stronger than the original one. We answer in the negative a question of Lupini on possible extensions of Gowers’ Ramsey theorem.
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DOI:
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发表时间:
2015
期刊:
Electron. Notes Discret. Math.
影响因子:
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作者:
J. Hubicka;J. Nesetril
通讯作者:
J. Nesetril
DOI:
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发表时间:
2010
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作者:
S. Todorcevic
通讯作者:
S. Todorcevic
DOI:
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发表时间:
1992
期刊:
European journal of combinatorics (Print)
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作者:
W. Gowers
通讯作者:
W. Gowers
DOI:
10.1016/j.aim.2019.106791
发表时间:
2016
期刊:
ArXiv
影响因子:
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作者:
J. Hubicka;J. Nesetril
通讯作者:
J. Nesetril
DOI:
--
发表时间:
--
期刊:
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作者:
Khatchatourian;Ivan;Pawliuk
通讯作者:
Pawliuk