Interpreting the projective hierarchy in expansions of the real line
Interpreting the projective hierarchy in expansions of the real line
复制标题
解释实线扩展中的射影层次
DOI:
10.1090/s0002-9939-2014-12023-5
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
Michael A. Tychonievich
中科院分区:
文献类型:
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作者:
Philipp Hieronymi;Michael A. Tychonievich
We give a criterion when an expansion of the ordered set of real numbers defines the image of (R,+, ·,N) under a semialgebraic injection. In particular, we show that for a non-quadratic irrational number α, the expansion of the ordered Q(α)-vector space of real numbers by N defines multiplication on R.