Heights in families of abelian varieties and the Geometric Bogomolov Conjecture
Speaker:
Ziyang Gao, Centre national de la recherche scientifique (CNRS)
Date and Time:
Tuesday, February 14, 2017 - 10:00am to 10:50am
Location:
Fields Institute, Room 230
Abstract:
Given an abelian scheme over a smooth curve over ¯Q, we can associate two height functions: the fiberwise defined Neron-Tate height and a height function on the set of algebraic points of the base curve. For any irreducible subvariety X of this abelian scheme, we prove that the Neron-Tate height of any algebraic point in an explicit Zariski open subset of X can be uniformly bounded from below by the height of its projection to the curve. We use this height inequality to prove the Geometric Bogomolov Conjecture over characteristic 0. This is joint work with Philipp Habegger.