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 prescribe…
math.AG2025
Divisorial fans and algebraic torus actions over arbitrary fields
Gary Martinez-Nunez
We provide an algebro-geometric combinatorial description of normal varieties endowed with an effective action of an algebraic torus over arbitrary fields. This description is achi…
math.AG2025
Proper polyhedral divisors and torus actions over arbitrary fields
Gary Martinez-Nunez
We provide a algebro-geometric combinatorial description of geometrically integral geometrically normal affine varieties endowed with an effective action of an algebraic torus over…