From the introduction:``The main goal of this work is to present, together with the basic
concepts of intersection theory, a number of concrete examples to illustrate several aspects …

In this note we obtain, phrased in present day geometric and computational frameworks, the
characteristic numbers of the family Unod of non-degenerate nodal plane cubics in P3, first …

For a given irreducible n-dimensional family C of plane curves of degree d, there is interest
in enumerative geometry to know the number of curves in C that satisfy n simple conditions …

In this paper we obtain some fundamental numbers of the family Unod of non-degenerate
nodal cubics in P3 involving, in addition to the characteristic conditions, other fundamental …

We determine the degree of some strata of singular cubic surfaces in the projective space
$\mathbf {P}^ 3$. These strata are subvarieties of the $\mathbf {P}^{19} $ parametrizing all …

Enumerative geometry seeks to determine how many algebro-geometric objects of a given
type satisfy certain given conditions. Questions of this type have been posed by …

The goal of the talk was to call attention to one of the recent interactions between geometry
and theoretical physics: ideas, results and problems pertaining to the enumerative geometry …

Any algebraic surface in P^ n (C) which is fibered in cubics, so that the generic fibre is a
twisted cubic, gives rise to a curve Γ in a suitable compactification X of the space of smooth …

abstract The formula χ= 3µ− 3b+ 5ν in Corollary 2.2 in [Hernández, X., Miret, J., Xambó, S.,
2007. Computing the characteristic numbers of the variety of nodal plane cubics in P3 …

For a given irreducible n-dimensional family C of plane curves of degree d, there is interest
in enumerative geometry to know the number of curves in C that satisfy n simple conditions …