Lagrangian methods and nonlinear high-frequency gravitational waves (Q1824232)
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scientific article; zbMATH DE number 4117426
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Lagrangian methods and nonlinear high-frequency gravitational waves |
scientific article; zbMATH DE number 4117426 |
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Lagrangian methods and nonlinear high-frequency gravitational waves (English)
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1989
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The author considers nonlinear gravitational waves by the high-frequency approximation. Using Whitham's two timing technique he shows that gravitational waves are no longer restricted to propagate along null geodesics as in the linear theory. He also shows that the theory is gauge invariant in the scope of this approximation.
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nonlinear gravitational waves
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null geodesics
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gauge invariant
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