Journal of Algebraic Geometry Journal of Algebraic Geometry

     

A conjecture on rational approximations to rational points

Author(s): David McKinnon
Journal: J. Algebraic Geom. 16 (2007), 257-303.
Posted: November 8, 2006
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Abstract | References | Additional information

Abstract: In this paper, we examine how well a rational point $ P$ on an algebraic variety $ X$ can be approximated by other rational points. We conjecture that if $ P$ lies on a rational curve, then the best approximations to $ P$ on $ X$ can be chosen to lie along a rational curve. We prove this conjecture for a wide range of examples, and for a great many more examples we deduce our conjecture from Vojta's Main Conjecture.


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Additional Information:

David McKinnon
Affiliation: Department of Pure Mathematics, University of Waterloo, Waterloo, ON N2L 3G1 Canada
Email: dmckinnon@math.uwaterloo.ca

PII: S 1056-3911(06)00458-9
Received by editor(s): May 16, 2005
Received by editor(s) in revised form: April 24, 2006
Posted: November 8, 2006
Additional Notes: This research was supported in part by NSERC grant 250196-02

Journal of Algebraic Geometry
The Journal of Algebraic Geometry
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