中文

Cohen-Macaulay树的边理想之幂的深度

交换代数 2023-09-12 v1 组合数学

摘要

II是维数为dd的Cohen-Macaulay树在多项式环S=k[x1,,xd,y1,,yd]S = \mathrm{k}[x_1,\ldots,x_{d},y_1,\ldots,y_d]上的边理想。我们证明对所有t1t \ge 1depth(S/It)=max{dt+1,1}.\operatorname{depth} (S/I^t) = \operatorname{max} \{d -t + 1, 1 \}.

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引用

@article{arxiv.2309.05011,
  title  = {Depth of powers of edge ideals of Cohen-Macaulay trees},
  author = {Nguyen Thu Hang and Truong Thi Hien and Thanh Vu},
  journal= {arXiv preprint arXiv:2309.05011},
  year   = {2023}
}