Richard Palais
MATHEMATICIAN WORKING IN GEOMETRY
Richard S. Palais; Richard Sheldon Palais; R. Palais; R. S. Palais; Palais, Richard
Richard Sheldon Palais (born May 22, 1931) is a mathematician working in geometry who introduced the principle of symmetric criticality, the Mostow–Palais theorem, the Lie–Palais theorem, the Morse–Palais lemma, and the Palais–Smale compactness condition.