List of Famous people who died in 2017

John Norman Mather was a mathematician at Princeton University known for his work on singularity theory and Hamiltonian dynamics. He was descended from Atherton Mather (1663–1734), a cousin of Cotton Mather. His early work dealt with the stability of smooth mappings between smooth manifolds of dimensions n and p. He determined the precise dimensions (n,p) for which smooth mappings are stable with respect to smooth equivalence by diffeomorphisms of the source and target.

Edward Samuel Herman was an American economist, media scholar and social critic. Herman is known for his media criticism, in particular his propaganda model hypothesis developed with Noam Chomsky, a frequent co-writer. He held an appointment as Professor Emeritus of finance at the Wharton School of Business of the University of Pennsylvania and a media analyst with a specialty in corporate and regulatory issues as well as political economy. He also taught at Annenberg School for Communication at the University of Pennsylvania.