Hurwitz equivalence in dihedral groups. (Q540020)

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scientific article; zbMATH DE number 5902975
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Hurwitz equivalence in dihedral groups.
scientific article; zbMATH DE number 5902975

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    Hurwitz equivalence in dihedral groups. (English)
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    1 June 2011
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    Summary: We determine the orbits of the braid group \(B_n\) action on \(G^n\) when \(G\) is a dihedral group and for any \(T\in G^n\). We prove that the following invariants serve as necessary and sufficient conditions for Hurwitz equivalence. They are: the product of its entries, the subgroup generated by its entries, and the number of times each conjugacy class (in the subgroup generated by its entries) is represented in \(T\).
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    dihedral groups
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    orbits
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    Hurwitz actions
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    actions of braid groups
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