A note on quasi-Buchsbaum rings

Author:

Goto Shiro

Abstract

In this paper the ubiquity of non-Buchsbaum but quasi-Buchsbaum rings is established. The result is stated as follows: Let d 3 d \ge 3 and h 1 , h 2 , , h d 1 0 {h_1},{h_2}, \ldots ,{h_{d - 1}} \ge 0 be integers and assume that at least two of h i {h_i} ’s are positive. Then there exists a non-Buchsbaum but quasi-Buchsbaum local integral domain A A of dim A = d \dim A = d and such that l A ( H m i ( A ) ) = h i {l_A}(H_m^i(A)) = {h_i} for all 1 i d 1 1 \le i \le d - 1 . Moreover if h 1 = 0 {h_1} = 0 the ring A A can be chosen to be normal.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference11 articles.

1. Local cohomology modules for normal domains;Evans, E. Graham, Jr.;J. London Math. Soc. (2),1979

2. Buchsbaum rings with multiplicity 2;Goto, Shiro;J. Algebra,1982

3. On Buchsbaum rings;Goto, Shiro;J. Algebra,1980

4. Index of reducibility of parameter ideals in a local ring;Goto, Shiro;J. Algebra,1984

5. Weitere Bemerkungen zu einem Problem der Schnittheorie und über ein Mass von A. Seidenberg für die Imperfektheit;Renschuch, Bodo;J. Algebra,1975

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