Herzog, Hibi, Trung, and 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.
The Standard Graded Property for Vertex Cover Algebras of Quasi-Trees
Alexandru Constantinescu;
2008-01-01
Abstract
Herzog, Hibi, Trung, and 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.File in questo prodotto:
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