| Abstract: | A new efficient approach to quantitatively studying nonstationary interference wave fields in layered homogeneous isotopic elastic media with plane-parallel interfaces is presented. Adequate statements of problems and efficient methods for their solution are discussed. Quantitative evaluations of fields in different regions of a medium are based on extensive application of contour integration methods, on modern numerical methods for studying the roots of the dispersion equations of problems, and on methods for constructing appropriate stationary contours of phase functions and for computing spectral functions of fields by methods of numerical integration along such contours. Bibligraphy: 10 titles. Translated fromZapiski Nauchnykh Seminarov POMI, Vol. 214, 1994, pp. 7–186. Translated by N. S. Zabavnikova and T. N. Surkova. |
