Anabelian geometry and descent obstructions on moduli spaces

作者：Patrikis Stefan^*; Voloch Jose Felipe; Zarhin Yuri G

来源：Algebra and Number Theory, 2016, 10(6): 1191-1219.

DOI：10.2140/ant.2016.10.1191

• Anabelian geometry
• moduli spaces
• abelian varieties
• descent obstruction

We study the section conjecture of anabelian geometry and the sufficiency of the finite descent obstruction to the Hasse principle for the moduli spaces of principally polarized abelian varieties and of curves over number fields. For the former we show that the section conjecture fails and the finite descent obstruction holds for a general class of adelic points, assuming several well-known conjectures. This is done by relating the problem to a local-global principle for Galois representations. For the latter, we show how the sufficiency of the finite descent obstruction implies the same for all hyperbolic curves.

• 出版日期2016