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Projective Dimension of String and Cycle Hypergraphs (1309.7948v2)
Published 30 Sep 2013 in math.AC and math.CO
Abstract: We present a closed formula and a simple algorithmic procedure to compute the projective dimension of square-free monomial ideals associated to string or cycle hypergraphs. As an application, among these ideals we characterize all the Cohen-Macaulay ones.