Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4584753 | Journal of Algebra | 2014 | 11 Pages |
Abstract
By finding a p -adic obstruction, we construct many examples of complete noetherian local normal FpFp-algebras R such that no module-finite extension R↪SR↪S is Cohen–Macaulay. These examples should be contrasted with a result of Hochster–Huneke: the directed union of all such extensions is always Cohen–Macaulay.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Bhargav Bhatt,