Open Access
September 2017 The behavior of depth functions of cover ideals of unimodular hypergraphs
Nguyen Thu Hang, Tran Nam Trung
Author Affiliations +
Ark. Mat. 55(1): 89-104 (September 2017). DOI: 10.4310/ARKIV.2017.v55.n1.a4

Abstract

We prove that the cover ideals of all unimodular hypergraphs have the non-increasing depth function property. Furthermore, we show that the index of depth stability of these ideals is bounded by the number of variables.

Funding Statement

This work is partially supported by NAFOSTED (Vietnam) under the grant number 101.04-2015.02. The first author is also partially supported by Thai Nguyen university of Science under the grant number ÐH2016-TN06-03.

Citation

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Nguyen Thu Hang. Tran Nam Trung. "The behavior of depth functions of cover ideals of unimodular hypergraphs." Ark. Mat. 55 (1) 89 - 104, September 2017. https://doi.org/10.4310/ARKIV.2017.v55.n1.a4

Information

Received: 14 January 2016; Published: September 2017
First available in Project Euclid: 2 February 2018

zbMATH: 06823274
MathSciNet: MR3711143
Digital Object Identifier: 10.4310/ARKIV.2017.v55.n1.a4

Subjects:
Primary: 13A15 , 13C13

Keywords: cover ideals , depth function , powers of ideals

Rights: Copyright © 2017 Institut Mittag-Leffler

Vol.55 • No. 1 • September 2017
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