Approximation on abelian varieties by its subgroups

Arash Rastegar

Published 2015-04-09Version 1

In this paper, we introduce an algebro-geometric formulation for Faltings' theorem on diophantine approximation on abelian varieties using an improvement of Faltings-Wustholz observation over number ?fields. In fact, we prove that, for any geometrically irreducible sub-variety E of an abelian variety A and any ?finitely generated subgroup F of A(C) we have an estimate of the form d_v(E;x) >cH(x)^d for for some constant c where d_v(E;x) denotes the distance of a point x in F outside E and v is a place of K. This was proved before, only for F being the set of rational points of A over a number ?field.