Orbit spaces of maximal torus actions on oriented Grassmannians of planes
Algebraic Geometry
2019-05-07 v2 Algebraic Topology
Symplectic Geometry
Abstract
Motivated by Buchstaber's and Terzic' work on the complex Grassmannians G(2,4) and G(2,5) we describe the moment map and the orbit space of oriented Grassmannians of planes under the action of a maximal compact torus. Our main tool is the realisation of these oriented Grassmannians as smooth complex quadric hypersurfaces and the relatively simple Geometric Invariant Theory of the corresponding algebraic torus action.
Keywords
Cite
@article{arxiv.1810.00981,
title = {Orbit spaces of maximal torus actions on oriented Grassmannians of planes},
author = {Hendrik Süß},
journal= {arXiv preprint arXiv:1810.00981},
year = {2019}
}
Comments
10 pages, revised version, minor correction