Lie groups Representations of groups 8 Lie algebras 4 Congresses 2 Symmetric spaces 2 Biography 1 Differential equations 1 Eisenstein series 1 Fiber bundles (Mathematics) 1 Functions 1 Geometry, Differential 1 Harmonic analysis 1 Hopf algebras 1 Invariants 1 Manifolds (Mathematics) 1 Mathematicians 1 Representations of algebras 1 Research 1 Riemannian manifolds 1 Transformation groups 1