By M.A. Slawinski
This booklet seeks to discover seismic phenomena in elastic media and emphasizes the interdependence of mathematical formula and actual that means. the aim of this identify - that's meant for senior undergraduate and graduate scholars in addition to scientists attracted to quantitative seismology - is to exploit points of continuum mechanics, wave idea and ray idea to explain phenomena due to the propagation of waves.
The ebook is split into 3 components: Elastic continua, Waves and rays, and Variational formula of rays. partially I, continuum mechanics are used to explain the fabric in which seismic waves propagate, and to formulate a method of equations to check the behaviour of such fabric. partly II, those equations are used to spot the kinds of physique waves propagating in elastic continua in addition to to specific their velocities and displacements by way of the homes of those continua. to resolve the equations of movement in anisotropic inhomogeneous continua, the high-frequency approximation is used and establishes the idea that of a ray. partly III, it truly is proven that during elastic continua a ray is tantamount to a trajectory alongside which a seismic sign propagates in line with the variational precept of desk bound go back and forth time.
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