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DM
1998
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14 years 10 months ago
Kazhdan-Lusztig polynomials for certain varieties of incomplete flags
Abstract. We give explicit formulas for the Kazhdan-Lusztig P- and Rpolynomials for permutations coming from the variety F1,n−1 of incomplete flags consisting of a line and a hy...
Boris Shapiro, Michael Shapiro, Alek Vainshtein
JCT
2008
70views more  JCT 2008»
14 years 10 months ago
Bruhat order, smooth Schubert varieties, and hyperplane arrangements
The aim of this article is to link Schubert varieties in the flag manifold with hyperplane arrangements. For a permutation, we construct a certain graphical hyperplane arrangement....
Suho Oh, Alexander Postnikov, Hwanchul Yoo