English

Koszul binomial edge ideals of pairs of graphs

Commutative Algebra 2018-07-27 v2 Combinatorics

Abstract

We study the Koszul property of a standard graded KK-algebra RR defined by the binomial edge ideal of a pair of graphs (G1,G2)(G_1,G_2). We show that the following statements are equivalent: (i) RR is Koszul; (ii) the defining ideal JG1,G2J_{G_1,G_2} of RR has a quadratic Gr\"obner basis; (iii) the graded maximal ideal of RR has linear quotients with respect to a suitable order of its generators

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Cite

@article{arxiv.1702.07316,
  title  = {Koszul binomial edge ideals of pairs of graphs},
  author = {Herolistra Baskoroputro and Viviana Ene and Cristian Ion},
  journal= {arXiv preprint arXiv:1702.07316},
  year   = {2018}
}