We investigate properties of certain invariants of Noetherian local rings, including their behavior under flat local homomorphisms. We show that these invariants are bounded by the multiplicity for Cohen-Macaulay local rings with infinite residue fields, and they all agree with the multiplicity when
Regularity Criterion of Noetherian Local Rings of Prime Characteristic
β Scribed by Mamoru Furuya; Hiroshi Niitsuma
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 124 KB
- Volume
- 247
- Category
- Article
- ISSN
- 0021-8693
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β¦ Synopsis
Let R be a local ring of essentially finite type over a field k of characteristic p > 0. We introduce the concept of p n -bases for an integer n > 0, and the notions of an n-admissible field for R/k and of a t -admissible field for R/k. For such a local ring R we give regularity criteria in terms of the higher differential algebra and of a p n -basis, respectively.
π SIMILAR VOLUMES
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