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摘要
Let k be a field. We consider gradings on a polynomial algebra k[X-1,..., X-n] by an arbitrary abelian group G, such that the indeterminates are homogeneous elements of nontrivial degree. We classify the isomorphism types of such gradings, and we count them in the case where G is finite. We present some examples of good gradings and find a minimal set of generators of the subalgebra of elements of trivial degree.
- 出版日期2016
