Kauta, John S. (2001) Crossed product orders over valuation rings. Bulletin of the London Mathematical Society, 33 (5). pp. 520-526. ISSN 0024-6093
PDF
- Published Version
Restricted to Repository staff only Download (141kB) | Request a copy |
Abstract
Let V be a commutative valuation domain of arbitrary Krull-dimension (rank), with quotient field F, and let K be a finite Galois extension of F with group G, and S the integral closure of V in K. If, in the crossed product algebra K * G, the 2-cocycle takes values in the group of units of S, then one can form, in a natural way, a 'crossed product order' S * G ⊆ K * G. In the light of recent results by H. Marubayashi and Z. Yi on the homological dimension of crossed products, this paper discusses necessary and/or sufficient valuation-theoretic conditions, on the extension K/F, for the V-order S * G to be semihereditary, maximal or Azumaya over V.
Item Type: | Journal Article |
---|---|
Subjects: | Q Science > QA Mathematics |
Divisions: | Faculty of Science, Technology and Environment (FSTE) > School of Computing, Information and Mathematical Sciences |
Depositing User: | John Kauta |
Date Deposited: | 05 Nov 2013 22:43 |
Last Modified: | 05 Nov 2013 22:43 |
URI: | https://repository.usp.ac.fj/id/eprint/7008 |
Actions (login required)
View Item |