Titlebook: Geometrical Optics and Related Topics; Ferruccio Colombini,Nicolas Lerner Conference proceedings 1997 Springer Science+Business Media New

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Conclusion, Synthesis, and Future Directions space-time, called rays. Two examples of ray theories are the geometrical optics theory of light and semi-classical quantum mechanics. When applicable, ray theory is extremely powerful and it often provide surprisingly accurate quantitative results.

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Impacts of Marine Mammal Tourism,pact manifolds with boundary is examined using geometric optics. General conditions on the geometry of an algebra of vector fields leading to a calculus of pseudodifferential operators are described and, once verified in this particular case, the associated notion of wavefront set can be used to sho

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https://doi.org/10.1007/978-1-4419-0206-1tract Sobolev embedding; in the second section, we introduce smoothing operators with respect to an Hörmander’s metric g and a .-weight .; in the third and last section, we prove the abstract embedding theorem.

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