English

On the postulation of lines and a fat line

Algebraic Geometry 2017-06-09 v1 Commutative Algebra

Abstract

In this note we show that the union of rr general lines and one fat line in P3{\mathbb P}^3 imposes independent conditions on forms of sufficiently high degree dd, where the bound on dd is independent of the number of lines. This extends former results of Hartshorne and Hirschowitz on unions of general lines, and of Aladpoosh on unions of general lines and one double line.

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Cite

@article{arxiv.1706.02350,
  title  = {On the postulation of lines and a fat line},
  author = {Thomas Bauer and Sandra Di Rocco and David Schmitz and Tomasz Szemberg and Justyna Szpond},
  journal= {arXiv preprint arXiv:1706.02350},
  year   = {2017}
}

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14 pages