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math/0612333

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Title: Quasi-socle ideals in a Gorenstein local ring
Authors: Shiro Goto, Naoyuki Matsuoka, Ryo Takahashi
Categories: math.AC Commutative Algebra
Comments: 20 pages, minor changes, to appear in J. Pure Appl. Algebra
MSC: 13H10, 13A30, 13B22, 13H15

Abstract: This paper explores the structure of quasi-socle ideals I=Q:m^2 in a Gorenstein local ring A, where Q is a parameter ideal and m is the maximal ideal in A. The purpose is to answer the problem of when Q is a reduction of I and when the associated graded ring G(I) = \bigoplus_{n \geq 0}I^n/I^{n+1} is Cohen-Macaulay. Wild examples are explored.

Owner: Ryo Takahashi
Version 1: Wed, 13 Dec 2006 01:54:59 GMT
Version 2: Sat, 28 Jul 2007 11:58:18 GMT

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