Small sets in dense pairs
Small sets in dense pairs
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密集对中的小集合
DOI:
10.1007/s11856-019-1892-4
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发表时间:
--
影响因子:
1
通讯作者:
P. Eleftheriou
中科院分区:
文献类型:
--
作者:
P. Eleftheriou
Letbe an expansion of an o-minimal structureby a dense setP⊆M, such that three tameness conditions hold. We prove that the induced structure onPbyeliminates imaginaries. As a corollary, we obtain that every small setXdefinable incan be definably embedded into somePl, uniformly in parameters, settling a question from [8]. We verify the tameness conditions in three examples: dense pairs of real closed fields, expansions of ℳ by a dense independent set, and expansions by a dense divisible multiplicative group with the Mann property. Along the way, we point out a gap in the proof of a relevant elimination of imaginaries result in Wencel [13]. The above results are in contrast to recent literature, as it is known in general thatdoes not eliminate imaginaries, and neither it nor the induced structure onPadmits definable Skolem functions.
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DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Pierre Simon
通讯作者:
Pierre Simon
影响因子:
1.3
作者:
Alfred Dolich;Chris Miller;C. Steinhorn
通讯作者:
C. Steinhorn
DOI:
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发表时间:
2006
期刊:
影响因子:
--
作者:
L. van den Dries;Ayhan Günaydin
通讯作者:
Ayhan Günaydin
影响因子:
0.3
作者:
R. Wencel
通讯作者:
R. Wencel
影响因子:
0.8
作者:
R. Wencel
通讯作者:
R. Wencel