Sergiu Klainerman, Ph.D., is Higgins Professor of Mathematics at Princeton University. He received his undergraduate degree from Bucharest University, Romania and his PhD from New York University. He was previously a Miller Fellow at the University of California Berkeley and served on the Mathematics faculty at NYU. Professor Klainerman is a member of the U.S. National Academy of Sciences and a Foreign Member of the French Academy of Sciences as well as a recipient of a MacArthur Fellowship, Bocher Prize of the American Mathematical Society, and Le Conte Prize of the French Academy of Sciences. He is editor of Annals of Mathematics and Annals of PDE. Among his notable achievements, Professor Klainerman, in collaboration with Jérémie Szeftel at Sorbonne, provided the first proof of the nonlinear stability of slowly-rotating Kerr black holes.