Does the superposition principle for wave equations (say electromagnetic) hold also for non homogeneous and anisotropic media? I.e. can one always represent a wave traveling in an arbitrary direction as a sum of waves propagating along the principal axes of, e.g. dielectric tensor [tex]\epsilon_{ik}[/tex]?(adsbygoogle = window.adsbygoogle || []).push({});

Thanks

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# Superposition principle in arbitrary medium

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