Asymptotic solutions of oscillatory initial value problems

Functional Analysis and Semi-groups

1996 • 4,058 citations

Methoden der mathematischen Physik

1993 • 1,242 citations

Symmetric hyperbolic linear differential equations

1954 • 652 citations

Asymptotic solution of some diffraction problems

1956 • 196 citations

On cauchy's problem for hyperbolic equations and the differentiability of solutions of elliptic equations

1955 • 148 citations

Asymptotic Solution of Linear Hyperbolic Partial Differential Equations

1954 • 13 citations