13 citations · 24 across the 14 of their papers we have counts for
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Minimal free resolutions of projective subschemes of small degree
Uwe Nagel
We discuss the minimal free resolution of an irreducible projective subscheme X. If X is also reduced, we focus on the case when its degree equals two plus the codimension. The set…
The Hilbert scheme of degree two curves and certain ropes
Uwe Nagel, Roberto Notari, Maria Luisa Spreafico
We study families of ropes of any codimension that are supported on lines. In particular, this includes all non-reduced curves of degree two. We construct suitable smooth parameter…
Normal form for space curves in a double plane
Nadia Chiarli, Silvio Greco, Uwe Nagel]
This note is an attempt to relate explicitly the geometric and algebraic properties of a space curve that is contained in some double plane. We show in particular that the minimal…
Non-degenerate curves with maximal Hartshorne-Rao module
Uwe Nagel
Extending results for space curves we establish bounds for the cohomology of a non-degenerate curve in projective -space. As a consequence, for any given we determine all po…
Reduced arithmetically Gorenstein schemes and simplicial polytopes with maximal Betti numbers
Juan C. Migliore, Uwe Nagel
An SI-sequence is a finite sequence of positive integers which is symmetric, unimodal and satisfies a certain growth condition. These are known to correspond precisely to the possi…