Theory of elastic waves in real crystals. I
Abstract
A new approach to the description of wave processes in real crystals is described; in this approach, the equations of motion of a continuous medium are written as a system of firstorder partial differential equations interms of the displacement vector. Some consequences which do not follow directly from the initial equations of motion are analyzed. It is shown, in particular, that the boundary conditions for the displacement field may be obtained directly from the processed equations. The analogy with electromagnetic waves is briefly discussed.
 Publication:

Soviet Physics Journal
 Pub Date:
 September 1978
 DOI:
 10.1007/BF00894564
 Bibcode:
 1978SvPhJ..21.1148N