English

Minimal free resolution of monoimal ideals by iterated mapping cone

Commutative Algebra 2017-08-29 v1

Abstract

In this paper we study minimal free resolutions of some classes of monomial ideals. we first give a sufficient condition to check the minimality of the resolution obtained by the mapping cone. Using it, we obtain the Betti numbers of max-path ideals of rooted trees and ideals containing powers of variables. In particular, we discuss about resolutions of ideals of the form JH+(xi12,,xim2)J_{\mathcal{H}}+(x_{i_1}^2,\ldots, x_{i_m}^2) where JHJ_{\mathcal{H}} is the edge ideal of a hypergraph H\mathcal{H}.

Keywords

Cite

@article{arxiv.1708.08370,
  title  = {Minimal free resolution of monoimal ideals by iterated mapping cone},
  author = {Leila Sharifan},
  journal= {arXiv preprint arXiv:1708.08370},
  year   = {2017}
}

Comments

17 pages, To appear in: Bull. Iranian Math. Soc