Analogue of the Bruhat decomposition for algebraic monoids (Q1077550)

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scientific article; zbMATH DE number 3957456
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Analogue of the Bruhat decomposition for algebraic monoids
scientific article; zbMATH DE number 3957456

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    Analogue of the Bruhat decomposition for algebraic monoids (English)
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    1986
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    The analogue of the Bruhat decomposition for reductive, algebraic monoids is established. A monoid version of the Tits system and general formulation of row reduction is obtained. In computations, the Weyl group W is replaced by a certain finite inverse monoid \({\mathcal R}\) with unit group W. Some results of Putcha are reproved concerning cross-section lattices.
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    Bruhat decomposition
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    reductive, algebraic monoids
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    Tits system
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    row reduction
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    Weyl group
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    cross-section lattices
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