The degrees of orbits of the multiplicity-free actions (Q2740891)

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scientific article; zbMATH DE number 1641600
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The degrees of orbits of the multiplicity-free actions
scientific article; zbMATH DE number 1641600

    Statements

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    5 September 2001
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    degrees of orbits
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    multiplicity-free actions
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    irreducible representation
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    Bernstein degree
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    highest weight modules
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    hermitian Lie algebras
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    The degrees of orbits of the multiplicity-free actions (English)
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    Let \(K\) be a connected reductive complex algebraic group. In the present paper, the authors give a formula for the degrees of orbits of an irreducible representation \(V\) with multiplicity-free action (i.e., any irreducible representation of \(K\) occurs at most once in the polynomial ring \(C[V]\)). In particular, the Bernstein degree and the associated cycle of the irreducible unitary highest weight modules of the scalar type are determined for arbitrary hermitian Lie algebras.NEWLINENEWLINEFor the entire collection see [Zbl 0968.22001].
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