Fermat's principle in inhomogeneous anisotropic media

Ivan Psencik


It is shown that the ray tracing equations for inhomogeneous anisotropic media are equations of extremals of the Fermat functional for such media.


Fermat's principle, Fermat's functional, extremals, rays.

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In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 175-177, Dep. Geophys., Charles Univ., Prague, 1997.
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