activity
19982026
most citedNegative curves on algebraic surfaces

53 citations · 177 across the 48 of their papers we have counts for

collaborators

59 papers

math.AG2026

Components of simple and non--simple type of Hurwitz schemes

Ciro Ciliberto, Andreas Leopold Knutsen, Sara Torelli

Let , with , be the Hurwitz space, parametrizing all morphisms of degree , with points $x_1,\l…

math.AG2026

On the Hurwitz existence problem for branched covers of the projective line

Ciro Ciliberto, Andreas Leopold Knutsen, Sara Torelli

We give an alternative proof of the Hurwitz existence problem for branched covers of in the case where the number of ramification points equals the number of branch…

math.AG2024

Brill-Noether loci of pencils with prescribed ramification on moduli of curves and on Severi varieties on surfaces

Andreas Leopold Knutsen, Sara Torelli

Under the assumption that the adjusted Brill-Noether number is at least , we prove that the Brill-Noether loci in of pointed curves carrying p…

math.AG2024★ 1 cited

Distinguishing Brill-Noether loci

Asher Auel, Richard Haburcak, Andreas Leopold Knutsen

We construct curves carrying certain special linear series and not others, showing many non-containments between Brill-Noether loci in the moduli space of curves. In particular, we…

math.AG2024

Pencils on general covers of an elliptic curve

Andreas Leopold Knutsen, Margherita Lelli-Chiesa

We completely describe the Brill-Noether theory of pencils on general primitive covers of elliptic curves of any degree.

math.AG2023

(Uni)rational parametrizations of , and in low genera

Margherita Lelli-Chiesa, Andreas Leopold Knutsen, Alessandro Verra

The moduli space R_{g,2n} parametrizes double covers of smooth curves of genus g ramified at 2n points. We will prove the (uni)rationality of R_{g,2}, R_{g,4} and R_{g,6} in low ge…