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Geometry, Calculus and Zil'ber's Conjecture

Published online by Cambridge University Press:  15 January 2014

Ya'acov Peterzil  and
Sergei Starchenko
Ya'acov Peterzil
Affiliation:
Department of Mathematics and Computer Science, Haifa University, Haifa, Israel.E-mail: [email protected]
Sergei Starchenko
Affiliation:
Department of Mathematics, Vanderbilt University, Nashville, TN 37240, USA.E-mail: [email protected]
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Extract

§1. Introduction. By and large, definitions of a differentiable structure on a set involve two ingredients, topology and algebra. However, in some cases, partial information on one or both of these is sufficient. A very simple example is that of the field ℝ (or any real closed field) where algebra alone determines the ordering and hence the topology of the field:

In the case of the field ℂ, the algebraic structure is insufficient to determine the Euclidean topology; another topology, Zariski, is associated with the ield but this will be too coarse to give a diferentiable structure.

A celebrated example of how partial algebraic and topological data (G a locally euclidean group) determines a differentiable structure (G is a Lie group) is Hilbert's 5th problem and its solution by Montgomery-Zippin and Gleason.

The main result which we discuss here (see [13] for the full version) is of a similar flavor: we recover an algebraic and later differentiable structure from a topological data. We begin with a linearly ordered set ⟨M, <⟩, equipped with the order topology, and its cartesian products with the product topologies. We then consider the collection of definable subsets of Mn, n = 1, 2, …, in some first order expansion ℳ of ⟨M, <⟩.

Type
Research Article
Information
Bulletin of Symbolic Logic , Volume 2 , Issue 1 , March 1996 , pp. 72 - 83
Copyright
Copyright © Association for Symbolic Logic 1996

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References

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