Generators of rings of constants for some diagonal derivations in polynomial rings (Q1899157)

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scientific article; zbMATH DE number 802560
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Generators of rings of constants for some diagonal derivations in polynomial rings
scientific article; zbMATH DE number 802560

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    Generators of rings of constants for some diagonal derivations in polynomial rings (English)
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    7 March 1996
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    Let \(K\) be a field of characteristic zero. The authors show that if \(n\geq 3\), that given \(r\geq 0\) there exists a diagonal \(K\)-derivation of \(K[x_1, \dots, x_n]\) such that the minimal number of generators over \(K\) of the ring of constants is equal to \(r\).
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    polynomial ring
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    diagonal derivation
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    field of characteristic zero
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    generators
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    ring of constants
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