"Brazilian mathematician" . "Manfredo Perdig\u00E3o do Carmo (1928 in Macei\u00F3, Alagoas, Brazil) is a Brazilian mathematician working in differential geometry. He is an emeritus researcher at the IMPA.He is known for his research on Riemannian manifolds, topology of manifolds, rigidity and convexity of isometric immersions, minimal surfaces, stability of hypersurfaces, isoperimetric problems, minimal submanifolds of a sphere, and manifolds of constant mean curvature and vanishing scalar curvature.He earned his Ph.D."@en . "Carmo, Manfredo do"@en . "1928Z"^^ .