Mikhail Gromov (Михаил Леонидович Громов) is a Russian-French mathematician, a Professor at IHES, with deep contributions to many areas of mathematics.
math genealogy page
Pseudo holomorphic curves in symplectic manifolds, Inventiones Mathematicae 82, n. 2 (1985) 307–347.
related entries: symplectic topology, Gromov-Witten invariant
Gromov also researches connections between mathemtatics, biology, and sees n-categories as the structures in mathematics closest to what is going on in the mind. see: