3 papers
math.AG2008
On the finiteness theorem for rational maps on a variety of general type
Lucio Guerra, Gian Pietro Pirola
The dominant rational maps of finite degree from a fixed variety to varieties of general type, up to birational isomorphisms, form a finite set. This has been known as the Iitaka-S…
math.AG2006
On rational maps from a general surface in P^3 to surfaces of general type
Lucio Guerra, Gian Pietro Pirola
We study the dominant rational maps from a general surface in P^{3} to surfaces of general type. We prove restrictions on the target surfaces, and special properties of the rationa…
math.AG2000
Siegel coordinates and moduli spaces for morphisms of abelian varieties
Lucio Guerra
We describe the moduli spaces of morphisms between polarized complex abelian varieties. The discrete invariants, derived from a Poincare' decomposition of morphisms, are the types…