We show that the isomorphism ฮถ B/A B/A โ A B introduced by the second author for a subintegral extension A โ B of positively graded rings with A 0 = B 0 is also an isomorphism if A โ B is only a weakly subintegral extension.
Subintegrality and Invertible Modules in Graded Rings
โ Scribed by Balwant Singh
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 165 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0021-8693
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