Point source waves near the interface between elastic and liquid media

Combined surface waves are under consideration, they can be presented as a combination of whispering gallery waves (concentrated near the boundary in the layer of width $O(\omega^{-2/3})$ for $\omega\to\infty$, where $\omega$ is a frequency) and standard surface waves (exponentially decaying moving away from the interface boundary with parameter proportional to $\omega$), or waves oscillating when going away from the boundary. Those waves are obtained near the boundary $z=0$ of inhomogeneous elastic medium $z>0$ (propagation velocities $a(z)$ and $b(z)$) and inhomogeneous liquid (velocity in the liquid is $a_0(z)$). In the latter case there are wave fields propagating with phase velocity close to the velocities of Stonely and Rayleigh, and also close to velocities $a_0$, $b$ and $a$ on the interface boundary. Bibl. 10 titles.