Mz. Svanadze, ON EXISTENCE OF EIGENFREQUENCIES IN THE THEORY OF 2-COMPONENT ELASTICMIXTURES, Quarterly Journal of Mechanics and Applied Mathematics, 51, 1998, pp. 427-437
In this paper some basic properties of wave numbers are treated and th
e existence theorems of eigenfrequencies of the interior homogeneous b
oundary-value problems of steady oscillations for two-component elasti
c mixtures are proved. The connection between plane waves and eigenfre
quencies is established.