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Lattices and hypergraphs associated to square-free monomial ideals

Authors :
Lin, Kuei-Nuan
Mapes, Sonja
Source :
Communications in Algebra. 50:4710-4724
Publication Year :
2022
Publisher :
Informa UK Limited, 2022.

Abstract

Given a square-free monomial ideal $I$ in a polynomial ring $R$ over a field $\mathbb{K}$, one can associate it with its LCM-lattice and its hypergraph. In this short note, we establish the connection between the LCM-lattice and the hypergraph, and in doing so we provide a sufficient condition for removing higher dimension edges of the hypergraph without impacting the projective dimension of the square-free monomial ideal. We also offer algorithms to compute the projective dimension of a class of square-free monomial ideals built using the new result and previous results of Lin-Mantero.<br />The paper is split into two via the suggestion of the editor. The second part will be submitted soon

Details

ISSN :
15324125 and 00927872
Volume :
50
Database :
OpenAIRE
Journal :
Communications in Algebra
Accession number :
edsair.doi.dedup.....5bb5f39021886da194afa117aab2b1f2