Starkov, A. S. A degeneracy phenomenon and resonance phenomena in problems of wave propagation. (English) Zbl 0494.35059 J. Sov. Math. 20, 1883-1890 (1982). MSC: 35L25 78A40 × Cite Format Result Cite Review PDF Full Text: DOI
Starkov, A. S. The degeneration phenomenon and resonance phenomena in problems of wave propagation. (Russian) Zbl 0472.35057 Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 104, 217-227 (1981). MSC: 35L25 78A40 × Cite Format Result Cite Review PDF Full Text: EuDML