Arithmetical rank of lexsegment edge ideals
作者： Viviana Ene , Naoki Terai , Oana Olteanu
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摘要: 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 arithmetical rank $I$ is equal to projective dimension $S/I.$
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