Aritmética de los semigrupos de Arf y saturados. Aplicaciones.
Arrangements of lines and monodromy of plane curves
Atkin-Lehner involutions and class number residuality
Automorphisms of Enriques surfaces which act trivially on the cohomology groups.
Automorphisms of generic cyclic covers.
Automorphisms of order three on numerical Godeaux surfaces
We prove that a numerical Godeaux surface cannot have an automorphism of order three.
Automorphisms of Prime Order of Curves.
Automorphisms of rational double points and moduli spaces of surfaces of general type