## Communicated by W. Eckhaus Solutions of weakly non-linear wave quations can be approximated using Galerkin's procedure combined with the averaging method. In this paper existence and uniqueness of solutions are proved in suitably chosen function spaces. Erroretimates lead us to results on asymp
On the averaging method for rod equations with quadratic non-linearity
β Scribed by R. P. Buitelaar
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 867 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0170-4214
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β¦ Synopsis
Abstract
The averaging method is used to approximate solutions of systems of linearly coupled, (quadratic) nonβlinear dispersive wave equations, which describe extensionalβtorsional dynamics of a rod. Existence and uniqueness results are established. Error estimates confirm the asymptotic validity of the approximation method on a long timeβscale. The linear couplings between the equations imply that resonance can occur inside a single mode of the solution, but energy can also be transferred to other modes.
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