Two-dimensional vector invariant rings o
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Jianjun Chuai
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Article
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2003
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Elsevier Science
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English
β 123 KB
For any faithful representation V of a non-trivial p-group over a field of characteristic p > 0, it is known that the ring of vector invariants of m copies of V is not Cohen-Macaulay if m 3. However, much less is known about the case m = 2. In this paper we show that, if m = 2 and the group is an Ab