A. Stabler

activity

20182026

collaborators

3 papers

math.AG2026

Pulling back Cartier structures along regular maps

Javier Carvajal-Rojas, Axel Stäbler

We introduce a framework for pulling back Cartier modules and their associated invariants along regular $F$ -finite morphisms. To achieve this, we construct a relative Cartier isomo…

math.AG2025

On pristine morphisms

Javier Carvajal-Rojas, Axel Stäbler

We investigate flat morphisms of schemes of positive characteristic whose relative Frobenius is an isomorphism, which we call pristine. We show that these give rise to a natural Gr…

math.AG2018

Reductions of non-lc ideals and non $F$ -pure ideals assuming weak ordinarity

Axel Stäbler

Assume $X$ is a variety over $C$ , $A \subseteq C$ is a finitely generated $Z$ -algebra and $X_{A}$ a model of $X$ (i.e. $X_{A} \times_{A} C ≅ X$ ).…

Pulling back Cartier structures along regular maps

On pristine morphisms

Reductions of non-lc ideals and non F-pure ideals assuming weak ordinarity

Reductions of non-lc ideals and non $F$ -pure ideals assuming weak ordinarity