Existentially generated subfields of large fields
Existentially generated subfields of large fields
复制标题
大字段的存在生成子字段
DOI:
10.1016/j.jalgebra.2018.09.021
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发表时间:
2019
影响因子:
0.9
通讯作者:
Anscombe S
中科院分区:
文献类型:
--
作者:
Anscombe S
We study subfields of large fields which are generated by infinite existentially definable subsets. We say that such subfields are existentially generated. Let L be a large field of characteristic exponent p, and let E⊆ L be an infinite existentially generated subfield. We show that E contains L (p n), the p n-th powers in L, for some n< ω. This generalises a result of Fehm from [4], which shows E= L, under the assumption that L is perfect. Our method is to first study existentially generated subfields of henselian fields. Since L is existentially closed in the henselian field L ((t)), our result follows.
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影响因子:
4.9
作者:
F. Pop
通讯作者:
F. Pop
DOI:
--
发表时间:
1939
期刊:
影响因子:
--
作者:
S. Lane
通讯作者:
S. Lane
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Will Anscombe
通讯作者:
Will Anscombe
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Arno Fehm
通讯作者:
Arno Fehm
DOI:
--
发表时间:
1977
期刊:
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
影响因子:
--
作者:
J. K. Deveney;J. Mordeson
通讯作者:
J. Mordeson