Generators and defining relations for ring of differential operators on smooth affine algebraic variety in prime characteristic

نویسنده

  • V. V. Bavula
چکیده

For the ring of differential operators D(O(X)) on a smooth affine algebraic variety X over a perfect field of characteristic p > 0, a set of algebra generators and a set of defining relations are found explicitly. A finite set of generators and a finite set of defining relations are given explicitly for the module DerK(O(X)) of derivations on the algebra O(X) of regular functions on the variety X . For an arbitrary irreducible affine algebraic variety X , it is proved that each term D(O(X))i of the order filtration D(O(X)) = ∪i≥0D(O(X))i is a finitely generated left O(X)-module. The same results are true for ring of differential operators on regular algebra of essentially finite type. Mathematics subject classification 2000: 13N10, 16S32, 13N15, 14J17.

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تاریخ انتشار 2008