Jay Gould Professor of Mathematics; Professor of Mathematics
D.Sc. 1973 (mathematics), Ph.D. 1969 (mathematics), Leningrad.
Area of Interests: Riemannian manifolds, symplectic manifolds, infinite groups, partial differential equations.
Office Address: 251 Mercer Street
New York, NY 10012
Publications:Pseudo holomorphic-curves in symplectic manifolds. Inventiones Mathematicae, 82. 1985. 307.
Filling Riemannian-manifolds. J. Diff. Geom., 18. 1983. 1.
Finite propagation speed, kernel estimates for functions of the Laplace operator, and the geometry of complete Riemannian-manifolds, with Cheeger, J. J. Diff. Geom., 17. 1982. 15.
Curvature, diameter and Betti numbers. Commentarii Mathematici Helvetici, 56. 1981. 81.