Yanson, Z. A. High-frequency asymptotic of the solution of the wave equation in the flat-plane waveguide formed by two caustics. (Russian) Zbl 0219.35011 Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 17, 218-243 (1970). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35B40 Asymptotic behavior of solutions to PDEs 35J05 Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation Citations:Zbl 0241.35017 PDFBibTeX XMLCite \textit{Z. A. Yanson}, Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 17, 218--243 (1970; Zbl 0219.35011) Full Text: EuDML