Skew-symmetric Vanishing Lattices and Intersections of Schubert Cells
Algebraic Geometry
2007-05-23 v1 Combinatorics
Abstract
We prove that the number of connected components in the intersection of two open opposite Schubert cells in the variety of complete real n-dimensional flags equals 3*2^{n-1} for n>5.
Keywords
Cite
@article{arxiv.math/9802093,
title = {Skew-symmetric Vanishing Lattices and Intersections of Schubert Cells},
author = {B. Shapiro and M. Shapiro and A. Vainshtein},
journal= {arXiv preprint arXiv:math/9802093},
year = {2007}
}
Comments
24 pages, 7 figures, AMSTeX, submitted to IMRN