Mathematics – Commutative Algebra
Scientific paper
2009-04-25
Mathematics
Commutative Algebra
23 pages, minor revisions for v.2, final version, to appear in Comm. Algebra
Scientific paper
Let R be a local Cohen-Macaulay ring with canonical module \omega_R. We investigate the following question of Huneke: If the sequence of Betti numbers \{\beta_i^R(\omega_R)\} has polynomial growth, must R be Gorenstein? This question is well-understood when R has minimal multiplicity. We investigate this question for a more general class of rings which we say are homologically of minimal multiplicity. We provide several characterizations of the rings in this class and establish a general ascent and descent result.
Borna Keivan
Sather-Wagstaff Sean
Yassemi Siamak
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