Spectral Theory and Wave Processes
Spectral Theory
Spectral Methods for Operators of Mathematical Physics
Spectral Theory and Differential Equations: Proceedings of the Symposium Held at Dundee, Scotland, July 1-19, 1974 (Lecture Notes in Mathematics, 448)
Spectral and Scattering Theory for Wave Propagation in Perturbed Stratified Media
On Spectral Theory of Elliptic Operators
Spectral Theory of Differential Operators: Self-Adjoint Differential Operators
Pseudodifferential Operators and Spectral Theory
Spectral Theory and Mathematical Physics
Sturm-Liouville Operators and Applications (Operator Theory: Advances and Applications) (German Edition)