Philip Hartman Author

Philip Hartman is Professor Emeritus of The Johns Hopkins University, where he taught in the Department of Mathematics from 1946 to 1980. He was the recipient of a Guggenheim Fellowship in 1950-51. During his active career, Professor Hartman has been a visiting professor or fellow at UCLA, NYU, Warwick University (England), and University of Pisa (Italy), and he has also served on the editorial boards for the American Journal of Mathematics and Nonlinear Analysis: Theory, Methods and Applications.