The Cohen-Macaulay property of separating invariants of finite groups

The Cohen-Macaulay property of separating invariants of finite groups

In the case of finite groups, a separating algebra is a subalgebra of the ring of invariants which separates the orbits. Although separating algebras are often better behaved than the ring of invariants, we show that many of the criteria which imply the ring of invariants is non-Cohen–Macaulay actua...

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Main Authors: Dufresne, E, Elmer, J, Kohls, M
格式: Journal article
出版: SP Birkhäuser Verlag Boston 2009

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