| Volume 2, Number 2, 2012, Pages 137-148 DOI：10.11948/2012010 |
| Existence and orbital stability of periodic wave solutions for the nonlinear Schrodinger equation |
| Ai Yong Chen,Shuangquan Wen,Wentao Huang |
| Keywords:Schrödinger equation |
| Abstract: |
| In this paper, we study the existence and orbital stability of periodic wave solutions or the Schrödinger equation. The existence of periodic wave solution is obtained by using the phase portrait analytical technique. The stability approach is based on the theory developed by Angulo for periodic eigenvalue problems. A crucial condition of orbital stability of periodic wave solutions is proved by using qualitative theory of ordinal differential equations. The results presented in this paper improve the previous approach, because the proving approach does not dependent on complete elliptic integral of first kind and second kind. |
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