Some combinatorial aspects of generalised Bott-Samelson varieties
Algebraic Geometry
2019-10-15 v1 Combinatorics
Abstract
We obtain two combinatorial results: an equality of Weyl groups and an inequality of roots, in the setting of generalised Bott-Samelson resolutions of minuscule Schubert varieties. These results are used in the companion paper [BK19] to describe minimal rational curves on these resolutions, and their relation to lines on the Schubert varieties.
Cite
@article{arxiv.1910.06208,
title = {Some combinatorial aspects of generalised Bott-Samelson varieties},
author = {Michel Brion and S. Senthamarai Kannan},
journal= {arXiv preprint arXiv:1910.06208},
year = {2019}
}
Comments
22 pages