Skip to main content
Log in

Resolutions of generic points lying on a smooth quadric

  • Published:
manuscripta mathematica Aims and scope Submit manuscript

Abstract

For a 0-dimensional schemeX on a smooth quadricQ we define a special type of resolution of its ideal sheaf as a locally freeO Q. These resolutions allow to find, for schemes which are generic inQ, the minimal free resolution ofX as a subscheme of ℙ3. For almost all such schemes the graded Betti numbers in ℙ3 depend only on the Hilbert function ofX in ℙ3.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Giuffrida, S., Maggioni, R., Ragusa, A., On the postulation of 0-dimensional subschemes on a smooth quadric. Pac. J. Math.155, 251–282 (1992).

    MathSciNet  Google Scholar 

  2. Giuffrida, S., Maggioni, R., Ragusa, A., Resolutions of 0-dimensional subschemes of a smooth quadric. Proc. Int. Conf. Ravello (1992) de Gruyter, Berlin New York, 1994.

    Google Scholar 

  3. Hartshorne, R., Algebraic Geometry. GTM 52, Springer-Verlag, Berlin, 1977.

    MATH  Google Scholar 

  4. Idà, M., On the homogeneous ideal of the generic union of lines in ℙ3. J. reine angew. Math.403, 67–153 (1990).

    MATH  MathSciNet  Google Scholar 

  5. Open Problems, Proc. Int. Conf. Ravello (1992) de Gruyter, Berlin New York, 1994.

  6. Walter, C., Personal communication.

Download references

Author information

Authors and Affiliations

Authors

Additional information

Work done with financial support of M.U.R.S.T., while the authors were members of C.N.R.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Giuffrida, S., Maggioni, R. & Ragusa, A. Resolutions of generic points lying on a smooth quadric. Manuscripta Math 91, 421–444 (1996). https://doi.org/10.1007/BF02567964

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02567964

AMS 1991 subject classification

Navigation