English

Vandermonde determinantal ideals

Commutative Algebra 2018-05-18 v3

Abstract

We show that the ideal generated by maximal minors (i.e., (k+1)(k+1)-minors) of a (k+1)×n(k+1) \times n Vandermonde matrix is radical and Cohen-Macaulay. Note that this ideal is generated by all Specht polynomials with shape (nk,1,...,1)(n-k,1,...,1).

Keywords

Cite

@article{arxiv.1712.04262,
  title  = {Vandermonde determinantal ideals},
  author = {Junzo Watanabe and Kohji Yanagawa},
  journal= {arXiv preprint arXiv:1712.04262},
  year   = {2018}
}

Comments

6 pages, simplified the proof of the main result. To appear in Math. Scand

R2 v1 2026-06-22T23:15:30.157Z