English

Depth of an initial ideal

Commutative Algebra 2019-08-02 v2

Abstract

Given an arbitrary integer d>0d>0, we construct a homogeneous ideal II of the polynomial ring S=K[x1,,x3d]S = K[x_1, \ldots, x_{3d}] in 3d3d variables over a filed KK for which S/IS/I is a Cohen--Macaulay ring of dimension dd with the property that, for each of the integers 0rd0 \leq r \leq d, there exists a monomial order <r<_r on SS with depth(S/in<r(I))=r{\rm depth} (S/{\rm in}_{<_r}(I)) = r, where in<r(I){\rm in}_{<_r}(I) is the initial ideal of II with respect to <r<_r.

Keywords

Cite

@article{arxiv.1907.12710,
  title  = {Depth of an initial ideal},
  author = {Takayuki Hibi and Akiyoshi Tsuchiya},
  journal= {arXiv preprint arXiv:1907.12710},
  year   = {2019}
}

Comments

4 pages

R2 v1 2026-06-23T10:34:21.605Z