A congruence modulo four in real Schubert calculus with isotropic flags
Algebraic Geometry
2015-02-06 v2
Abstract
We previously obtained a congruence modulo four for the number of real solutions to many Schubert problems on a square Grassmannian given by osculating flags. Here, we consider Schubert problems given by more general isotropic flags, and prove this congruence modulo four for the largest class of Schubert problems that could be expected to exhibit this congruence.
Cite
@article{arxiv.1405.7761,
title = {A congruence modulo four in real Schubert calculus with isotropic flags},
author = {Nickolas Hein and Frank Sottile and Igor Zelenko},
journal= {arXiv preprint arXiv:1405.7761},
year = {2015}
}
Comments
9 pages