Blurred complex exponentiation
Blurred complex exponentiation
复制标题
模糊复数幂运算
DOI:
10.1007/s00029-019-0517-4
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Jonathan Kirby
中科院分区:
文献类型:
--
作者:
Jonathan Kirby
It is shown that the complex field equipped with the approximate exponential map, defined up to ambiguity from a small group, is quasiminimal: every automorphism-invariant subset of C\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb {C}$$\end{document} is countable or co-countable. If the ambiguity is taken to be from a subfield analogous to a field of constants then the resulting blurred exponential field is isomorphic to the result of an equivalent blurring of Zilber’s exponential field, and to a suitable reduct of a differentially closed field. These results are progress towards Zilber’s conjecture that the complex exponential field itself is quasiminimal. A key ingredient in the proofs is to prove the analogue of the exponential-algebraic closedness property using the density of the group governing the ambiguity with respect to the complex topology.
影响因子:
1.3
作者:
Bays M
通讯作者:
Bays M
DOI:
10.1007/s00029-009-0001-7
发表时间:
2009
期刊:
Selecta Mathematica
影响因子:
--
作者:
Kirby J
通讯作者:
Kirby J