The American Mathematical Society selected him as the Josiah Willards Gibbs lecturer for 1954. In November 1977, Friedrichs received the National Medal of Science from President Jimmy Carter "for bringing the powers of modern mathematics to bear on problems in physics, fluid dynamics, and elasticity." Selected bibliography R. von Mises and K. O. Friedrichs, Fluid Dynamics, Springer-Verlag (1971). K. O. Friedrichs, Perturbation of Spectra in Hilbert Space, American Mathematical Society (1965). K. O. Friedrichs, Mathematical aspects of the quantum theory of fields, Interscience (1953). K. O. Friedrichs, Spectral Theory of Operators in Hilbert Space, Springer-Verlag (1981). . A selection from Friedrichs' works with a biography and commentaries of David Isaacson, Fritz John, Tosio Kato, Peter Lax, Louis Nirenberg, Wolfgang Wasow, Harold Weitzner. See also Mollifier References External links National Academy of Sciences Biographical Memoir 1901 births 1982 deaths Scientists from Kiel Scientists from New Rochelle, New York 20th-century German mathematicians 20th-century American mathematicians National Medal of Science laureates Members of the United States National Academy of Sciences PDE theorists Operator theorists Courant Institute of Mathematical Sciences faculty Academic staff of the Technical University of Braunschweig Mathematicians from New York (state) German emigrants to the United States