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Using Approximate Symmetry and Principal Lie Algebra to find unknown Function and Invariant Solution | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 19, Issue 5, 2008, Pages 55-63 | ||
| Author | ||
| Zainab John | ||
| Abstract | ||
| In this paper we use the method of approximate symmetry and principal Lie algebra to find the unknown function ( , ) r f h h , and invariant solution of the nonlinear differential equation. We derived the principal Lie algebra for the differential function of two variables, from which we can find the unknown function, invariant solution and commutate table for the infinitesimal generators | ||
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