Kernel Coefficient Ideals in Noetherian Rings
โ Scribed by Da-Qing Chen
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 336 KB
- Volume
- 179
- Category
- Article
- ISSN
- 0021-8693
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โฆ Synopsis
A new ideal I*, the kernel coefficient ideal of a nonprincipal ideal I, is introduced in a commutative Noetherian ring R. Various properties of this ideal and its relations with many other standard concepts are studied. I* is also examined in terms of a sequence of subideals I and the relation type of I when R n is a local ring. Several characterizations of I* are given in terms of the kernels of certain ring homomorphisms, and then it is shown that this new ideal has many nice applications, especially in the study of asymptotic prime divisors. แฎ 1996 Academic Press, Inc. 1 g ลฝ . and 2.4 that I* actually depends only on I.
๐ SIMILAR VOLUMES
Let A be a finitely generated module over a (Noetherian) local ring R M . We say that a nonzero submodule B of A is basically full in A if no minimal basis for B can be extended to a minimal basis of any submodule of A properly containing B. We prove that a basically full submodule of A is M-primary
Let R s k x , . . . , x r x q ะธะธะธ qx , where k is a field of characteristic p, p does not divide d, and n G 3. If pd, then the test ideal for R is contained in ลฝ . py 1 ลฝ . py 1 x , . . . , x . If d s p q 1, then the test ideal for R is equal to x , . . . , x .
In this paper we explore one aspect of the relationship between group cohomology and representation theory. For a finite group G and a field k in characteristic ลฝ . p)0, ideals in the cohomology ring H \* G, k can sometimes be characterized by exact sequences of kG-modules in much the same way that