Arithmetical rank of lexsegment edge ideals

Details Arithmetical rank of lexsegment edge ideals Arithmetical rank of lexsegment edge ideals

2009-11-15

arxiv.org/abs/0911.2884v2

Mathematics

Commutative Algebra

Scientific paper

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

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