The algebraic numbers definable in various exponential fields

The algebraic numbers definable in various exponential fields
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各种指数域中可定义的代数数

DOI:
10.1017/s1474748012000047
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发表时间:
2011
影响因子:
0.9
通讯作者:
A. Onshuus
A. Onshuus
中科院分区:
数学1区
文献类型:
--
作者:
Jonathan Kirby;A. Macintyre;A. Onshuus

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本文证明了下列定理。定理1:对任何具有循环核的E-域,特别是E-域或Zilber域,所有的真实的阿贝尔代数数都是逐点可定义的。定理2:对于Zilber域,唯一的逐点可定义的代数数是真实的阿贝尔数。
Abstract We prove the following theorems. Theorem 1: for any E-field with cyclic kernel, in particular ℂ or the Zilber fields, all real abelian algebraic numbers are pointwise definable. Theorem 2: for the Zilber fields, the only pointwise definable algebraic numbers are the real abelian numbers.