The h -vectors of toric ideals of odd cycle compositions revisited
Abstract
Let G be a graph consisting of s odd cycles that all share a common vertex. Bhaskara, Higashitani, and Shibu Deepthi recently computed the h-polynomial for the quotient ring R/IG, where IG is the toric ideal of G, in terms of the number and sizes of odd cycles in the graph. The purpose of this note is to prove the stronger result that these toric ideals are geometrically vertex decomposable, which allows us to deduce the result of Bhaskara, Higashitani, and Shibu Deepthi about the h-polynomial as a corollary.
Fields of Study & Subjects
Commutative Algebra and Its Applications
Polynomial and algebraic computation
Algebraic Geometry and Number Theory
Publication details
- Journal / source
- Communications in Algebra
- Volume
- 54
- Issue
- 11
- Pages
- 3528–3536
- Publication date
- 1 January 2026
- Language
- EN