›› 2012, Vol. 31 ›› Issue (8): 17-17.
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Abstract: Two-dimensional coupling nonlinear harmonic oscillator is analyzed and the basic eigenvalue is ob- tained by using the approximation method of self-consistent averaging. The result is very close to the one derived from the perturbation method.
Key words: approximation of self-consistent average, perturbation method, eigenvalue
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