English

Multigraded regularity, reduction vectors and postulation vectors

Commutative Algebra 2016-06-21 v1

Abstract

We relate the set of complete reduction vectors of a Zs\mathbb{Z}^s-graded admissible filtration of ideals F\mathcal{F} with the set of multigraded regularities of G(F).G(\mathcal{F}). We prove reg(G(F))(G(\mathcal{F}))=reg(R(F)).(\mathcal{R}(\mathcal{F})). We establish a relation between the sets of complete reduction vectors of F\mathcal{F} and postulation vectors of F\mathcal{F} under some cohomological conditions.

Cite

@article{arxiv.1606.05891,
  title  = {Multigraded regularity, reduction vectors and postulation vectors},
  author = {Parangama Sarkar},
  journal= {arXiv preprint arXiv:1606.05891},
  year   = {2016}
}

Comments

17 pages

R2 v1 2026-06-22T14:28:48.617Z