Principally polarized abelian surfaces with surjective galois representations on l-torsion

Abstract

Given a rational variety $V$ defined over $K$, we consider a principally polarized abelian variety $A$ of dimension $g$ defined over $V$. For each prime l we then consider the galois representation on the $l$-torsion of $A_t$, where $t$ is a $K$-rational point of $V$. The largest possible image is $GS{p}_{2g}({\mathbb{F}}_l)$ and in the cases $g=1$ and 2, we are able to get surjectivity for all $l$ and almost all $t$. In the case $g=1$ this recovers a theorem originally proven by William Duke.

References in corpus (2)

• Elliptic curves with maximal Galois action on their torsion points
• Surjectivity Criteria for p-adic Representations, Part I

Cited by in corpus (1)

• Surjectivity of Galois Representations in Rational Families of Abelian Varieties