Integrating Factors and First Integrals for Liénard Type and Frequency-Damped Oscillators
We consider Liénard type and frequency-damped oscillator equations. Integrating factors and the associated first integrals are derived from the method to compute 𝜆-symmetries and the associated reduction algorithm. The knowledge of a 𝜆−symmetry of the equation permits the determination of an integra...
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| Format: | Article |
| Language: | English |
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Hindawi Limited
2011-01-01
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| Series: | Mathematical Problems in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2011/916437 |