Roberts, Leslie G. ; Singh, Balwant (2001) Weak subintegrality and invertible modules in graded rings Journal of Algebra, 237 (2). pp. 657-672. ISSN 0021-8693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1006/jabr.2000.8597
Abstract
We show that the isomorphism ςB/A: B/A → ϑ(A∗,B∗) introduced by the second author for a subintegral extension A⊆B of positively graded rings with A0= B0 is also an isomorphism if A⊆B is only a weakly subintegral extension.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84730 |
| Deposited On: | 28 Feb 2012 03:43 |
| Last Modified: | 28 Feb 2012 03:43 |
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