Huygens equations and spherical waves (Q1081025)
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scientific article; zbMATH DE number 3969187
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Huygens equations and spherical waves |
scientific article; zbMATH DE number 3969187 |
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Huygens equations and spherical waves (English)
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1986
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The Courant conjecture is proved, namely that families of spherical waves of order zero for arbitrary time-like curves exist only in the case of two and four variables, and then only if the differential equation is equivalent by trivial transformations to ordinary wave equation.
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second-order linear hyperbolic equations
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Huygens equations
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Huygens' principle
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Courant conjecture
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spherical waves
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time-like curves
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