English

Canonical Hilbert-Burch matrices for ideals of $k[x,y]$

Commutative Algebra 2007-08-28 v1 Algebraic Geometry

Abstract

An Artinian ideal II of k[x,y]k[x,y] has many Hilbert-Burch matrices. We show that there is a canonical choice. As an application, we determine the dimension of certain affine Gr\"obner cells and their Betti strata recovering results of Ellingsrud and Str{\o}mme, G\"ottsche and Iarrobino.

Keywords

Cite

@article{arxiv.0708.3576,
  title  = {Canonical Hilbert-Burch matrices for ideals of $k[x,y]$},
  author = {Aldo Conca and Giuseppe Valla},
  journal= {arXiv preprint arXiv:0708.3576},
  year   = {2007}
}