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Countable Ordinals and Big Ramsey Degrees
Combinatorica ( IF 1.0 ) Pub Date : 2021-02-01 , DOI: 10.1007/s00493-020-4192-z Dragan Mašulović , Branislav Šobot
中文翻译:
可数的平凡和大拉姆西学位
更新日期:2021-02-02
Combinatorica ( IF 1.0 ) Pub Date : 2021-02-01 , DOI: 10.1007/s00493-020-4192-z Dragan Mašulović , Branislav Šobot
In this paper we consider big Ramsey degrees of finite chains in countable ordinals. We prove that a countable ordinal has finite big Ramsey degrees if and only if it is smaller than ωω. Big Ramsey degrees of finite chains in all other countable ordinals are infinite.
中文翻译:
可数的平凡和大拉姆西学位
在本文中,我们考虑了可数序数中有限链的大拉姆齐度。我们证明了可数序具有有限的大拉姆齐度当且仅当它小于ω ω。在所有其他可数序数中,有限链的大拉姆齐度是无限的。