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Twists of Shimura Curves
Published online by Cambridge University Press: 20 November 2018
Abstract
Consider a Shimura curve $X_{0}^{D}\left( N \right)$ over the rational numbers. We determine criteria for the twist by an Atkin–Lenher involution to have points over a local field. As a corollary we give a new proof of the theorem of Jordan and Livné on ${{\mathbf{Q}}_{p}}$ points when $p|D$ and for the first time give criteria for ${{\mathbf{Q}}_{p}}$ points when $p|N$. We also give congruence conditions for roots modulo $p$ of Hilbert class polynomials.
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- Research Article
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- Copyright © Canadian Mathematical Society 2014
Footnotes
The author was partially supported by NSF VIGRE grant DMS-0738586 and the University of Georgia Dissertation completion award.
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