English

Properties of the coordinate ring of a convex polyomino

Commutative Algebra 2018-03-13 v1

Abstract

We classify all convex polyomino whose coordinate rings are Gorenstein. We also compute the Castelnuovo-Mumford regularity of the coordinate ring of any stack polyomino in terms of the smallest interval which contains its vertices. We give a recursive formula for computing the multiplicity of a stack polyomino.

Keywords

Cite

@article{arxiv.1803.03801,
  title  = {Properties of the coordinate ring of a convex polyomino},
  author = {Claudia Andrei},
  journal= {arXiv preprint arXiv:1803.03801},
  year   = {2018}
}