2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/222145J. Herzog, T. Hibi, N. V. Trung and X. Zheng characterize the vertex cover algebras which are standard graded. In this paper we give a simple combinatorial criterion for the standard graded property of vertex cover algebras in the case of quasi-trees. We also give an example of how this criterion works and compute the maximal degree of a minimal generator in that case.Commutative AlgebraCombinatorics13A30text