Banach Lie groupoid of partial isometries over restricted Grassmannian
arXiv:2404.12847 · doi:10.1007/s13324-025-01028-y
Abstract
The set of partial isometries in a W*-algebra possesses a structure of Banach Lie groupoid. In this paper the differential structure on the set of partial isometries over the restricted Grassmannian is constructed, which makes it into a Banach Lie groupoid.
13 pages