Type: Article
On the flag curvature of invariant Randers metrics
Journal: Mathematical Physics Analysis and Geometry (13850172)Year: February 2008Volume: 11Issue: Pages: 1 - 9
DOI:10.1007/s11040-008-9037-8Language: English
Abstract
In the present paper, the flag curvature of invariant Randers metrics on homogeneous spaces and Lie groups is studied. We first give an explicit formula for the flag curvature of invariant Randers metrics arising from invariant Riemannian metrics on homogeneous spaces and, in special case, Lie groups. We then study Randers metrics of constant positive flag curvature and complete underlying Riemannian metric on Lie groups. Finally we give some properties of those Lie groups which admit a left invariant non-Riemannian Randers metric of Berwald type arising from a left invariant Riemannian metric and a left invariant vector field. © 2008 Springer Science+Business Media B.V.