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The Dowling transform of subspace arrangements - MaRDI portal

The Dowling transform of subspace arrangements (Q1584659)

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scientific article; zbMATH DE number 1525312
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English
The Dowling transform of subspace arrangements
scientific article; zbMATH DE number 1525312

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    The Dowling transform of subspace arrangements (English)
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    13 June 2001
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    The paper introduces the Dowling transform, which takes a real frame arrangement with coordinate hyperplanes into a complex one. The Dowling transform takes the braid arrangement \(A_n\) to the Dowling arrangement. It is shown that the Dowling transform preserves supersolvability. A direct proof is given to Zaslavsky's theorem, which counts the chambers and bounded chambers of a real hyperplane arrangement in terms of the characteristic polynomial of the arrangement.
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    valuations
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    intersection lattice
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    frame arrangement
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    Dowling transform
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    braid arrangement
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    supersolvability
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    hyperplane arrangement
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    characteristic polynomial
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