中文

超曲面环上极大Cohen-Macaulay模的相伴分次模

交换代数 2022-08-05 v1

摘要

A=Q/(f)A=Q/(f),其中 (Q,n)(Q,\mathfrak{n}) 为维数 d+1d+1 的完备正则局部环,fnini+1f\in \mathfrak{n}^i\setminus\mathfrak{n}^{i+1}(对某 i2i\geq 2),且 MM 为 MCM AA-模并满足 e(M)=μ(M)i(M)+1e(M)=\mu(M)i(M)+1,则我们证明 depth G(M)d1G(M)\geq d-1。若 (A,m)(A,\mathfrak{m}) 为剩余域无限的维数 dd 的完备超曲面环且 e(A)=3e(A)=3,设 MMμ(M)=2\mu(M)=233 的 MCM AA-模,则我们证明 depth G(M)dμ(M)+1G(M)\geq d-\mu(M)+1。我们的论文是对超曲面环上 MCM 模的相伴分次模深度问题的首次系统性研究。

关键词

引用

@article{arxiv.2208.02667,
  title  = {On associated graded modules of maximal Cohen-Macaulay modules over hypersurface rings},
  author = {Ankit Mishra and Tony J. Puthenpurakal},
  journal= {arXiv preprint arXiv:2208.02667},
  year   = {2022}
}

备注

This paper consists of part of our paper arXiv:2106.13758. This was done due to advice of some of our colleagues