Orbit Spaces of Linear Circle Actions
arXiv:1704.04519 · doi:10.2140/involve.2019.12.941
Abstract
In this paper, it is shown that non-isomorphic effective linear circle actions yield non-diffeomorphic differential structures on the corresponding orbit spaces.
17 pages. This paper is the result of a Summer 2016 REU (undergraduate research) project at the University of Colorado Boulder. [V2 update: the earlier version contained material not dealt with during the REU, which will be published separately.] To appear in Involve