4 papers
Classification of equivariantly normal curves via Altmann-Hausen-Süss theory
Gary MartÃnez-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…
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…
Decomposition of jacobians of generalized Fermat curves
Gary Martinez-Nunez
We give a decomposition of the jacobian variety of a generalized Fermat curve. This extends a result obtained by Auffarth, Lucchini-Arteche and Rojas on Humbert-Edge curves, which…
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…