Kiselev, A. P. A high-frequency source between the branches of a hyperbola. (Russian) Zbl 0341.34010 Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 25, 79-100 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 34B05 Linear boundary value problems for ordinary differential equations 35L05 Wave equation × Cite Format Result Cite Review PDF Full Text: EuDML