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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Some intersection properties of the fibres of Springer's resolution

Author: James S. Wolper
Journal: Proc. Amer. Math. Soc. 91 (1984), 182-188
MSC: Primary 20G99; Secondary 14L30
MathSciNet review: 740166
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Abstract: Combinatorial results are used to calculate the dimension of the intersection of any two irreducible components of the set in the flag variety fixed by the action of a unipotent element of $ {\text{G}}{{\text{L}}_n}$ whose Jordan decomposition has two blocks. This is then related to the "left cells" of Kazhdan and Lusztig, which are used to construct representations of $ {S_n}$, the Weyl group of $ {\text{G}}{{\text{L}}_n}$.

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PII: S 0002-9939(1984)0740166-8
Article copyright: © Copyright 1984 American Mathematical Society

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