3 papers
math.AG2026
Enumerative geometry of skew lines in with a given associated finite group
Luca Chiantini, Åucja Farnik, Giuseppe Favacchio +4
For any finite set of 3 or more skew lines in over an algebraically closed field of arbitrary characteristic, there is a ca…
math.AG2026
Weddle schemes
Luca Chiantini, Åucja Farnik, Giuseppe Favacchio +4
The classical Weddle surface is the locus of vertices of quadric cones through six points in in linear general position. Equivalently, it is the closure of the locus…
math.AG2026
Intersection of curves in projective 4 space
Luca Chiantini, Åucja Farnik, Giuseppe Favacchio +4
Given two distinct reduced, irreducible curves of given degrees, contained in projective space but whose union is not contained in a hyperplane, what is the largest number of point…