Arithmetical rank of squarefree monomial ideals generated by five elements or with arithmetic degree four release_5duhhs3tozbzbkr6f2exomffte

by Kyouko Kimura, Giancarlo Rinaldo, Naoki Terai

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2011  

Abstract

Let I be a squarefree monomial ideal of a polynomial ring S. In this paper, we prove that the arithmetical rank of I is equal to the projective dimension of S/I when one of the following conditions is satisfied: (1) μ (I) ≤ 5; (2) I ≤ 4.
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Type  article
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Date   2011-07-04
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arXiv  1107.0563v1
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