Projective Dimension of String and Cycle Hypergraphs
نویسندگان
چکیده
منابع مشابه
Hypergraphs with high projective dimension and 1-dimensional hypergraphs
(Dual) hypergraphs have been used by Kimura, Rinaldo and Terai to characterize squarefree monomial ideals J with pd(R/J) ≤ μ(J) − 1, i.e. whose projective dimension equals the minimal number of generators of J minus 1. In this paper we prove sufficient and necessary combinatorial conditions for pd(R/J) ≤ μ(J)−2. The second main result is an effective explicit procedure to compute the projective...
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ژورنال
عنوان ژورنال: Communications in Algebra
سال: 2016
ISSN: 0092-7872,1532-4125
DOI: 10.1080/00927872.2014.982810