When is a Squarefree Monomial Ideal of Linear Type ?
arXiv:1309.1771
Abstract
In 1995 Villarreal gave a combinatorial description of the equations of Rees algebras of quadratic squarefree monomial ideals. His description was based on the concept of closed even walks in a graph. In this paper we will generalize his results for all squarefree monomial ideals by using a definition of even walks in a simplicial complex.
15 pages, 8 figures, To appear in Commutative Algebra and Noncommutative Algebraic Geometry and Representation Theory