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math.AG2026
Automorphisms of the moduli space of smooth cubic surfaces and its fundamental group
Gregorio Baldi, Benson Farb, Ariyan Javanpeykar +1
Let be the moduli space of smooth complex cubic surfaces and let be its (orbifold) fundamental group. We prove that the ``divisor subgroup'' of $π_…
math.AG2026
The theorem of Maehara-Severi for maps of general type
Finn Bartsch, Ariyan Javanpeykar, Erwan Rousseau
We prove a finiteness result for dominant rational maps whose orbifold base is of general type. Our finiteness result generalizes Maehara's theorem that a given variety dominates o…
math.AG2026
Weakly special varieties, Campana stacks, and Remarks on Orbifold Mordell
Finn Bartsch, Ariyan Javanpeykar
We construct the first weakly special surfaces that are not Campana-special, including the complement of the plane curve in . We prove that the set of $\…