5 articles in this issue
Alessandro Arsie, Concettina Galati
The notion of geometric k-normality for curves is introduced in complete generality and is investigated in the case of nodal and cuspidal curves living on several types of surfaces. We discuss and suggest some applications of this notion to the study of S... see more
Michela Artebani, Remke Kloosterman, Marco Pacini
In this paper we give a birational model for the theta divisor of the intermediate Jacobian of a generic cubic threefold X . We use the standard realization of X as a conic bundle and a 4-dimensional family of plane quartics which are totally tangent to t... see more
Alessandra Bernardi, Damiano Fulghesu
Let X be a smooth projective complex curve and let U_X (r, d) be the moduli space of semi-stable vector bundles of rank r and degree d on X (see [8]).
Nguyen Quang Minh, Slawomir Rams
In this paper, we study the intersection of the Coble-Dolgachev sextic with special projective spaces. Let us recall that the Coble-Dolgachev sextic C_6 is the branch divisor of a double cover map. The adjunction of divisors is an involution of Pic^1(X) t... see more
Paolo Stellari
In this paper we consider cubic 4-folds containing a plane whose discriminant curve is a reduced nodal plane sextic. In particular, we describe the singular points of such cubic 4-folds and we give conditions on the geometry of the plane sextics so that a... see more