collaborators

3 papers

math.AG2026

Classification of equivariantly normal curves via Altmann-Hausen-Süss theory

Gary Martínez-Núnez, Ronan Terpereau

Let the ground field be perfect of positive characteristic. Using Altmann-Hausen-Süss theory, we obtain a combinatorial classification of equivariantly normal curves with prescrib…

math.AG2026

Equivariant automorphism group and real forms of complexity-one varieties

Giancarlo Lucchini Arteche, Ronan Terpereau

Let G be a connected reductive algebraic group over a perfect field. We study the representability of the equivariant automorphism group of G-varieties. For a broad class of comple…

math.AG2025

Horospherical subgroups in positive characteristic

Matilde Maccan, Ronan Terpereau

We investigate horospherical homogeneous spaces--a class of spherical homogeneous spaces encompassing both flag varieties and algebraic tori--over algebraically closed fields of ch…