Unlikely intersections with isogeny orbits in a product of elliptic schemes
Number Theory
2020-07-27 v2 Algebraic Geometry
Abstract
Fix an elliptic curve without CM and a non-isotrivial elliptic scheme over a smooth irreducible curve, both defined over the algebraic numbers. Consider the union of all images of a fixed finite-rank subgroup (of arbitrary rank) of , also defined over the algebraic numbers, under all isogenies between and some fiber of the -th fibered power of the elliptic scheme, where is a fixed natural number. As a special case of a slightly more general result, we characterize the subvarieties (of arbitrary dimension) inside that have potentially Zariski dense intersection with this set. In the proof, we combine a generalized Vojta-R\'emond inequality with the Pila-Zannier strategy.
Keywords
Cite
@article{arxiv.1902.01323,
title = {Unlikely intersections with isogeny orbits in a product of elliptic schemes},
author = {Gabriel Andreas Dill},
journal= {arXiv preprint arXiv:1902.01323},
year = {2020}
}
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36 pages