AbstractWe study when double covers of P3 ramified along nodal surfaces are not Q-factorial. In particular, we describe all the Q-factorial double covers of P3 ramified along quartic surfaces with at most seven simple double points and sextic surfaces with at most 16 simple double points
Let X be a smooth quartic surface not containing lines, defined over a numberfield K. We prove that ...
Let X be a smooth quartic surface not containing lines, defined over a number field K. We prove that...
We study the surface of Gauss double points associated to a very general quartic surface and the nat...
AbstractWe study when double covers of P3 ramified along nodal surfaces are not Q-factorial. In part...
We prove the Q-factoriality of a nodal hypersurface in P4 of degree n with at most (n−1) 2 4 nodes a...
It is known that the Q-factoriality of a nodal quartic 3-fold in P4 implies its nonrationality. We p...
We prove the factoriality of a nodal hypersurface in P4 of de-gree d that has at most 2(d − 1)2/3 si...
International audienceWe prove that a double covering of P^3 branched along a very general sextic su...
We study the potential density of rational points on double solids ramified along singular reduced s...
AbstractWe study the potential density of rational points on double solids ramified along singular r...
. Let B be a surface of even degree d in P 3 with nodes as the only singular points. Let X be a do...
Abstract. The paper explores the birational geometry of terminal quartic 3-folds. In doing this I de...
In previous work, we have introduced a program aimed at studying the birational geometry of locally ...
AbstractLet Y be a smooth Enriques surface. A K3 carpet on Y is a double structure on Y with the sam...
We study the potential density of rational points on double solids ramified along singular reduced s...
Let X be a smooth quartic surface not containing lines, defined over a numberfield K. We prove that ...
Let X be a smooth quartic surface not containing lines, defined over a number field K. We prove that...
We study the surface of Gauss double points associated to a very general quartic surface and the nat...
AbstractWe study when double covers of P3 ramified along nodal surfaces are not Q-factorial. In part...
We prove the Q-factoriality of a nodal hypersurface in P4 of degree n with at most (n−1) 2 4 nodes a...
It is known that the Q-factoriality of a nodal quartic 3-fold in P4 implies its nonrationality. We p...
We prove the factoriality of a nodal hypersurface in P4 of de-gree d that has at most 2(d − 1)2/3 si...
International audienceWe prove that a double covering of P^3 branched along a very general sextic su...
We study the potential density of rational points on double solids ramified along singular reduced s...
AbstractWe study the potential density of rational points on double solids ramified along singular r...
. Let B be a surface of even degree d in P 3 with nodes as the only singular points. Let X be a do...
Abstract. The paper explores the birational geometry of terminal quartic 3-folds. In doing this I de...
In previous work, we have introduced a program aimed at studying the birational geometry of locally ...
AbstractLet Y be a smooth Enriques surface. A K3 carpet on Y is a double structure on Y with the sam...
We study the potential density of rational points on double solids ramified along singular reduced s...
Let X be a smooth quartic surface not containing lines, defined over a numberfield K. We prove that ...
Let X be a smooth quartic surface not containing lines, defined over a number field K. We prove that...
We study the surface of Gauss double points associated to a very general quartic surface and the nat...