A Congruence Modulo Four for Real Schubert Calculus with Isotropic Flags Academic Article

abstract

• AbstractWe 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.

authors

• Sottile, Frank
• Zelenko, Igor

published proceedings

• CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES

author list (cited authors)

• Hein, N., Sottile, F., & Zelenko, I.

citation count

• 1

complete list of authors

• Hein, Nickolas||Sottile, Frank||Zelenko, Igor

publication date

• June 2017

publisher

• Canadian Mathematical Society  Publisher

published in

• Canadian Mathematical Bulletin  Journal

keywords

• Lagrangian Grassmannian
• Shapiro Conjecture
• Wronski Map

Digital Object Identifier (DOI)

• 10.4153/CMB-2016-087-2

start page

• 309

end page

• 318

volume

• 60

issue

• 2

URL

• http://dx.doi.org/10.4153/cmb-2016-087-2