Eikonal equation
Sign in to savenon-linear partial differential equation encountered in problems of wave propagation
Connections
geometrical optics
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WKB approximation
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International Standard Book Number
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Ancient Greek
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wave
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digital object identifier
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electric field
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oceanography
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Maxwell's equations
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William Rowan Hamilton
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Fields medal
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Schrödinger equation
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causality
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Q180686
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refractive index
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JSTOR
Organization
Euclidean space
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gradient
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bibcode
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Vladimir Arnold
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