Walter Alexander Strauss (born 1937) is an American applied mathematician, specializing in partial differential equations and nonlinear waves.
His research interests include partial differential equations, mathematical physics, stability theory, solitary waves, kinetic theory of plasmas, scattering theory, water waves, and dispersive waves.
His thesis was titled Scattering for hyperbolic equations and was supervised by Irving Segal.
[2][3] Strauss was a postdoctoral researcher for the academic year 1962–1963 at the University of Paris.
H. Poincare (Paris), Duke University and the Mittag-Leffler Institute (Sweden).