Non-Koszul quadratic Gorenstein toric rings
arXiv:1610.00260
Abstract
Koszulness of Gorenstein quadratic algebras of small socle degree is studied. In this note, we construct non-Koszul Gorenstein quadratic toric ring such that its socle degree is more than 3 by using stable set polytopes.
11 pages, 3 figures, Proposition 1.3(4) is added