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Gorenstein graded rings associated to ideals of analytic deviation 2. (English) Zbl 0848.13005
Under certain assumptions, the authors characterize the Gorenstein property of the graded ring associated to an ideal of analytic deviation 2 in a Noetherian local ring and also the Gorenstein property of the Rees ring associated with such an ideal. Under the same assumptions the authors evaluate the minimal number of generators of an ideal whose associated graded ring is Gorenstein.
Reviewer: M.Roitman (Haifa)

MSC:
13A30 Associated graded rings of ideals (Rees ring, form ring), analytic spread and related topics
13H10 Special types (Cohen-Macaulay, Gorenstein, Buchsbaum, etc.)
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