English

Extremal Betti numbers of certain two-dimensional monomial ideals

Commutative Algebra 2025-10-15 v1

Abstract

In this paper, we shall provide explicit formulas for the extremal Betti numbers of R/IR/I, where II is the defining ideal of certain weighted hyperplanes in Pn1\Bbb{P}^{n-1} and RR is the polynomial ring in nn indeterminates over a field. As a consequence, we completely classify such ideals which are pseudo-Gorenstein as in sense of V. Ene, J. Herzog, T. Hibi and S. S. Madani.

Keywords

Cite

@article{arxiv.2510.12149,
  title  = {Extremal Betti numbers of certain two-dimensional monomial ideals},
  author = {Nguyen Quang Loc and Nguyen Cong Minh and Phan Thi Thuy},
  journal= {arXiv preprint arXiv:2510.12149},
  year   = {2025}
}
R2 v1 2026-07-01T06:35:33.362Z