The problem is considered of the passage of an acoustic wave given by its ray expansion through a thin layer. The method of boundary-layer asymptotic expansions is applied to obtain ray representations of the reflected and transmitted waves (the small parameters are the thickness of the layer and the wave length).
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Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklov AN SSSR, Vol. 173, pp. 20–29, 1988.
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Babich, V.M. Passage of a wave through a thin layer. J Math Sci 55, 1656–1662 (1991). https://doi.org/10.1007/BF01098203
- Thin Layer
- Acoustic Wave
- Asymptotic Expansion
- Wave Length
- Small Parameter