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Dualizing Complexes and Perverse Modules over Differential Algebras

Amnon Yekutieli·James J. Zhang
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Abstract

A differential algebra of finite type over a field k is a filtered algebra A, such that the associated graded algebra is finite over its center, and the center is a finitely generated k-algebra. The prototypical example is the algebra of differential operators on a smooth affine variety, when char k = 0. We study homological and geometric properties of differential algebras of finite type. The main results concern the rigid dualizing complex over such an algebra A: its existence, structure and variance properties. We also define and study perverse A-modules, and show how they are related to the Auslander property of the rigid dualizing complex of A.

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BibTeXRIS

Amnon Yekutieli, James J. Zhang. 2004-07-14. Dualizing Complexes and Perverse Modules over Differential Algebras. https://arxiv.org/abs/math/0301323

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