Gorenstein semigroup algebras of weighted trees and ordered points on the projective line

JOURNAL OF ALGEBRA

卷:354

Article

Manon, Christopher

关键词: Moduli of points;    Toric degeneration;    Gorenstein algebra;   

DOI  :  10.1016/j.jalgebra.2011.12.025

来源: Elsevier

【 摘 要 】

We determine exactly which semigroup algebras of weighted trees are Gorenstein. These algebras arise as toric degenerations of projective coordinate rings of moduli of weighted points on the projective line. As a corollary, we find exactly when these families of algebras are Gorenstein as well. (C) 2012 Elsevier Inc. All rights reserved.

【 授权许可】

Free