9 citations · 20 across the 9 of their papers we have counts for
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Gorenstein Liaison and ACM Sheaves
Marta Casanellas, Elena Drozd, Robin Hartshorne
We study Gorenstein liaison of codimension two subschemes of an arithmetically Gorenstein scheme X. Our main result is a criterion for two such subschemes to be in the same Gorenst…
Gorenstein Biliaison and ACM Sheaves
Marta Casanellas, Robin Hartshorne
Let be a normal arithmetically Gorenstein scheme in . We give a criterion for all codimension two ACM subschemes of to be in the same Gorenstein biliaison cl…
On Rao's Theorems and the Lazarsfeld-Rao Property
Robin Hartshorne
Let be an integral projective scheme satisfying the condition of Serre and for all . We generalize Rao's theorem by showin…
Geometry of arithmetically Gorenstein curves in
Robin Hartshorne
We characterize the postulation character of arithmetically Gorenstein curves in . We give conditions under which the curve can be realized in the form on som…
Generalized Divisors and Biliaison
Robin Hartshorne
We extend the theory of generalized divisors so as to work on any scheme satisfying the condition of Serre. We define a generalized notion of Gorenstein biliaison for sch…