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Preprint Number 1394
1394. Daniel Bertrand, Harry Schmidt Unlikely intersections in semi-abelian surfaces E-mail: Submission date: 13 March 2018 Abstract: We consider a family, depending on a parameter, of multiplicative extensions of an elliptic curve with complex multiplications. They form a 3-dimensional variety G which admits a dense set of special curves, known as Ribet curves, which strictly contains the torsion curves. In the spirit of the Zilber-Pink conjecture and unlikely intersections, we show that an irreducible curve W in G meets this set Zariski-densely only if W lies in a fiber of the family or is a translate of a Ribet curve by a multiplicative section. Mathematics Subject Classification: 14K15 (Primary), 11G15 (Secondary) Keywords and phrases: |
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