The $v$-number of generalized binomial edge ideals of some graphs
Commutative Algebra
2026-04-08 v2
Abstract
Let be a finite connected simple graph, and let denote its generalized binomial edge ideal. By investigating the colon ideals of , we derive a formula for the local -number of with respect to the empty cut set. Furthermore, we classify graphs for which this generalized binomial edge ideal has -numbers or . When is a connected closed graph, we compute the local -number of by generalizing the work of Dey et al. Additionally, under the condition that is Cohen--Macaulay, we derive formulas for the -number of and , and show that the -number of is a linear function of .
Keywords
Cite
@article{arxiv.2603.29516,
title = {The $v$-number of generalized binomial edge ideals of some graphs},
author = {Yi-Huang Shen and Guangjun Zhu},
journal= {arXiv preprint arXiv:2603.29516},
year = {2026}
}