Étale fundamental groups of smooth arithmetic surfaces and the Grothendieck conjecture
Abstract
We study the structure of the étale fundamental groups of smooth curves over certain arithmetic schemes, and investigate the relative version of Grothendieck's anabelian conjecture in this setting. Consequently, every hyperbolic curve over the ring of S-integers of a number field in which a rational prime is inverted is anabelian, i.e., its schematic structure is completely determined by its étale fundamental group. Moreover, we obtain a partial result toward the semi-absolute version of Grothendieck's anabelian conjecture in this context.
Fields of Study & Subjects
Algebraic Geometry and Number Theory
Analytic Number Theory Research
Advanced Algebra and Geometry
Publication details
- Journal / source
- Journal of Number Theory
- Volume
- 293
- Pages
- 453–480
- Publication date
- 11 August 2026
- Language
- EN