Joseph Keller

Joseph Bishop Keller is an American mathematician who specializes in applied mathematics. He is best known for his work on the "Geometrical Theory of Diffraction". He obtained his PhD in 1948 from New York University under the supervision of Richard Courant. He was a Professor of Mathematics in the Courant Institute at New York University until 1979. Then he was Professor of Mathematics and Mechanical Engineering at Stanford University until 1993, when he became Professor Emeritus. He has a brother who was also a mathematician, Herbert B. Keller, who has studied numerical analysis, scientific computing, bifurcation theory, path following and homotopy methods, and computational fluid dynamics. Herbert Keller was a professor at Caltech. Both brothers have contributed to the fields of electromagnetics and fluid dynamics. Joseph Keller worked on the application of mathematics to problems in science and engineering, such as wave propagation. He contributed to the Einstein–Brillouin–Keller method for computing eigenvalues in quantum mechanical systems. Keller was awarded a Lester R. Ford Award in 1976 and unshared in 1977. In 1988 he was awarded the U.S.