Mathematics – Algebraic Geometry
Scientific paper
2006-01-26
Mathematics
Algebraic Geometry
30 pages, AMSLaTeX, xypic diagrams. Final version, to appear in Algebras and Representation Theory. Minor changes
Scientific paper
In this paper we present a new approach to Grothendieck duality over commutative rings. Our approach is based on the idea of rigid dualizing complexes, which was introduced by Van den Bergh in the context of noncommutative algebraic geometry. The method of rigidity was modified to work over general commutative base rings in our paper [YZ5]. In the present paper we obtain many of the important local features of Grothendieck duality, yet manage to avoid lengthy and difficult compatibility verifications. Our results apply to essentially finite type algebras over a regular noetherian finite dimensional base ring, and hence are suitable for arithmetic rings. In the sequel paper [Ye4] these results will be used to construct and study rigid dualizing complexes on schemes.
Yekutieli Amnon
Zhang James J.
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