3 papers
math.LO2021
Model theory of differential fields with finite group actions
Daniel Max Hoffmann, Omar León Sánchez
Let G be a finite group. We explore the model theoretic properties of the class of differential fields of characteristic zero in m commuting derivations equipped with a G-action by…
math.AG2018
Differential Weil Descent and Differentially Large Fields
Omar León Sánchez, Marcus Tressl
A differential version of the classical Weil descent is established in all characteristics. It yields a theory of differential restriction of scalars for differential varieties ove…
math.RA2017
On the Dixmier-Moeglin equivalence for Poisson-Hopf algebra
Stéphane Launois, Omar León Sánchez
We prove that the Poisson version of the Dixmier-Moeglin equivalence holds for cocommutative affine Poisson-Hopf algebras. This is a first step towards understanding the symplectic…