paper

A refined non-vanishing of the -adic logarithm of a rational point on an abelian variety

arXiv:2603.20886

Abstract

Inspired by a beautiful formula of Bertolini, Darmon, and Prasanna -- the oft-termed BDP formula -- we address questions about the non-vanishing of non-torsion points under -adic logarithms of abelian varieties. We largely consider situations most applicable to -type abelian varieties associated with Hilbert modular newforms and Heegner points. Not surprisingly, the main tool employed is the -adic analytic subgroup theorem.

Ann. Math. Que., to appear