English

Finite $0$-dimensional multiprojective schemes and their ideals

Algebraic Geometry 2021-11-15 v1 Commutative Algebra

Abstract

We study finite 00-dimensional schemes in product of multiprojective spaces and their ideals. In particular, we describe the set of generators of the ideal defining a 00-dimensional scheme in the case P1××P1\mathbb P^{1}\times\cdots \times\mathbb P^{1} and in the case Pn1××Pnk\mathbb P^{n_1}\times \cdots \times \mathbb P^{n_k} with ni{1,2}n_i\in \{1,2\} for all ii. We also check very ampleness for zero-dimensional schemes of general points in the multiprojective spaces.

Keywords

Cite

@article{arxiv.2111.06480,
  title  = {Finite $0$-dimensional multiprojective schemes and their ideals},
  author = {Edoardo Ballico and Elena Guardo},
  journal= {arXiv preprint arXiv:2111.06480},
  year   = {2021}
}

Comments

11 pages

R2 v1 2026-06-24T07:35:43.457Z