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The Number of Generators of Some Homogeneous Ideals

 

作者: William C. Brown,  

 

期刊: Communications in Algebra  (Taylor Available online 1995)
卷期: Volume 23, issue 5  

页码: 1941-1951

 

ISSN:0092-7872

 

年代: 1995

 

DOI:10.1080/00927879508825320

 

出版商: Marcel Dekker, Inc.

 

数据来源: Taylor

 

摘要:

Let A = k[x1,..., xn] be a standard graded k-algebra over an infinite field k. We assume A is Cohen-Macaulay and has Krull dimension one. Let e denote the multiplicity of A and r - 1 the postulation number of A. Let I be a homogeneous ideal in A of grade one. Let j(I) denote the smallest degree of a regular form in I. Let l (I) denote the smallest power of (x1,... , xn) contained in I. If μ(I) denotes the minimum number of generators of I, then we show μ(I) ≤ e + j(I) - max{r,l(I)}, We then show how Dubreil's Second Theorem follows easily from this inequality

 

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