3 papers
math.AG2026
Brauer groups of resolved quiver moduli via gerbes
Pieter Belmans, Gianni Petrella, Sebastián Torres
We show that the Brauer group of any resolution of singularities of the moduli space of semistable quiver representations is trivial. We do this by extending the quiver-curve dicti…
math.AG2026
Weighted projective degenerations of
Kristin DeVleming, Jennifer Li, Sebastián Torres
We study weighted projective klt -Gorenstein degenerations of projective space and construct infinitely many new degenerations of projective space in a…
math.AG2024
Rational surfaces with a non-arithmetic automorphism group
Jennifer Li, Sebastián Torres
In arXiv:1008.3825, Totaro gave examples of a K3 surface such that its automorphism group is not commensurable with an arithmetic group, answering a question of Mazur. We give exam…