1. An Extrinsic Look at the Riemannian Hessian, Geometric Science of Information;Absil,2013
2. Morse-Bott functions on orthogonal groups;Bozma;Topol. Appl.,2019
3. Functions, flows and oscillatory integrals on flag manifolds and conjugacy classes in real semisimple Lie groups;Duistermaat;Compos. Math.,1983
4. Critical submanifolds of the classical groups and Stiefel manifolds;Frankel,1965
5. Riemannian Geometry;Gallot,1987