3 papers
math.NT2025
Crystalline Chebotarëv density theorems
Urs Hartl, Ambrus Pal
Using the Tannakian formalism, we formulate conjectural analogs of Chebotarëv's Density Theorem for -isocrystals over a smooth geometrically irreducible variety defined over a…
math.AG2025
Arithmetic Satake compactifications and algebraic Drinfeld modular forms
Urs Hartl, Chia-Fu Yu
In this article we construct the arithmetic Satake compactification of the Drinfeld moduli schemes of arbitrary rank over the ring of integers of any global function field away fro…
math.DG2024
Moment map flow on real reductive Lie groups and GIT estimates
Christoph Böhm, Urs Hartl
A finite dimensional real vector space carrying an action of a real reductive group possesses a moment map and a stratification as defined by Kirwan and Ness. In this article we in…