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On form rings which are Cohen-Macaulay

✍ Scribed by Giuseppe Valla

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
221 KB
Volume
58
Category
Article
ISSN
0021-8693

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If V is a faithful module for a finite group G over a field of characteristic p, then the ring of invariants need not be Cohen᎐Macaulay if p divides the order of G. In this article the cohomology of G is used to study the question of Cohen᎐Macaulayness of the invariant ring. One of the results is a