Exact Solutions with Jacobi Elliptic Functions of Two Nonlinear Models for Ion-Acoustic Plasma Waves

The periodic wave solutions of two nonlinear models for ion-acoustic plasma waves, including the mixed Korteweg–de Vries (KdV) and modified KdV equation and the (3+1)-dimensional modified Zakharov–Kuznetsov equation, are obtained by using the F -expansion method and introducing appropriate transformations. In the limiting cases, the solitary wave solutions of the equations are also obtained.

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