English

Arithmetical rank of lexsegment edge ideals

Commutative Algebra 2009-12-08 v2

Abstract

Let IS=K[x1,...,xn]I\subset S=K[x_1,...,x_n] be a lexsegment edge ideal or the Alexander dual of such an ideal. In both cases it turns out that the arithmetical rank of II is equal to the projective dimension of S/I.S/I.

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Cite

@article{arxiv.0911.2884,
  title  = {Arithmetical rank of lexsegment edge ideals},
  author = {Viviana Ene and Oana Olteanu and Naoki Terai},
  journal= {arXiv preprint arXiv:0911.2884},
  year   = {2009}
}