output
20032009
most citedThe oblique parameters in multi-Higgs-doublet models

401 citations

Showing math.AGShow all

8 papers · 1 filter

math.AG2008

Moving curves and Seshadri constants

Andreas Leopold Knutsen, Wioletta Syzdek, Tomasz Szemberg

We study families of curves covering a projective surface and give lower bounds on the self-intersection of the members of such families, improving results of Ein-Lazarsfeld and Xu…

math.AG20081 cited

Brill-Noether theory of curves on Enriques surfaces I: the positive cone and gonality

Andreas Leopold Knutsen, Angelo Felice Lopez

We study the existence of linear series on curves lying on an Enriques surface and general in their complete linear system. Using a method that works also below the Bogomolov-Reide…

math.AG20074 cited

Nodal curves with general moduli on K3 surfaces

Flaminio Flamini, Andreas L. Knutsen, Gianluca Pacienza +1

We investigate the modular properties of nodal curves on a low genus K3 surface. We prove that a general genus g curve C is the normalization of a d-nodal curve X sitting on a prim…

math.AG2007

Remarks on families of singular curves with hyperelliptic normalizations

Andreas Leopold Knutsen

We give restrictions on the existence of families of curves on smooth projective surfaces of nonnegative Kodaira dimension all having constant geometric genus and hy…

math.AG2007

On two conjectures for curves on surfaces

Andreas Leopold Knutsen

We prove that the gonality among the smooth curves in a complete linear system on a surface is constant except for the Donagi-Morrison example. This was proved by Ciliberto an…

math.AG20072 cited

A note on Seshadri constants on general surfaces

Andreas Leopold Knutsen

We prove a lower bound on the Seshadri constant on a surface with $\Pic S \simeq \ZZ[L]$. In particular, we obtain that if for an integer .