Arithmetically Cohen-Macaulay curves in P4 of degree 4 and genus 0.

Ragni Piene; Mireille Martin-Deschamps

Displaying similar documents to “Arithmetically Cohen-Macaulay curves in P4 of degree 4 and genus 0.”

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Some examples of Gorenstein liaison in codimension three.

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Gorenstein liaison seems to be the natural notion to generalize to higher codimension the well-known results about liaison of varieties of codimension 2 in projective space. In this paper we study points in P3 and curves in P4 in an attempt to see how far typical codimension 2 results will extend. While the results are satisfactory for small degree, we find in each case examples where we cannot decide the outcome. This examples are candidates for counterexamples to the hoped-for extensions...

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Gorenstein liaison of some curves in P.

Joshua Lesperance (2001)

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Despite the recent advances made in Gorenstein liaison, there are still many open questions for the theory in codimension ≥ 3. In particular we consider the following question: given two curves in P with isomorphic deficiency modules (up to shift), can they be evenly Gorenstein linked? The answer for this is yes for curves in P, due to Rao, but for higher codimension the answer is not known. This paper will look at large classes of curves in P with isomorphic deficiency modules and show...

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