The divisor of curves with a vanishing theta-null
Singular locus of the theta divisor for vector bundles of rank two.
For which Jacobi varities is Sing ... reducible?
On the Gieseker-Petri Map for Rank 2 vector bundles.
Moduli spaces of (semi)stable vector bundles on tree-linke curves.
Compactifications of moduli spaces of (semi)stable bundles on singular curves: two points of view.
Moduli spaces of vector bundles on families of non-singular curves are usually compactified by considering (slope)semistable bundles on stable curves. Alternatively, one could consider Hilbert-stable curves in Grassmannians. We study some properties of the latter and compare them with similar properties of curves coming from the former compactification. This leads to a new interpretation of the moduli space of (semi)stable torsion-free sheaves on a fixed nodal curve. One can present it as a quotient...
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