Title: Scattering theory for the d'Alembert equation in exterior domains
Subjects: Lagrange equations, Laplacian operator, Scattering, Sound-waves, Wave equation, Diffusion, Schallwelle, Laplace, Opérateur de, Ondes sonores, Équation d'onde, Wellengleichung, Lagrange, Équations de, Streuung, Theorie, Streutheorie, Laplace transformation, Mathematics, Mathematics, general