(n-1)-st Koszul homology and the structure of monomial ideals
Anna M. Bigatti,
E. Saenz-de-Cabezon
Abstract:Koszul homology of monomial ideals provides a description of the structure of such ideals, not only from a homological point of view (free resolutions, Betti numbers, Hilbert series) but also from an algebraic viewpoint. In this paper we show that, in particular, the homology at degree (n − 1), with n the number of indeterminates of the ring, plays an important role for this algebraic description in terms of Stanley and irreducible decompositions.
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