Theoretical investigation of nonlinear electrostatic ion-acoustic cnoidal waves (IACWs) is presented in magnetized electron–positron–ion plasma with nonextensive electrons and Maxwellian positrons. Using reductive perturbation technique, Korteweg–de Vries equation is derived and its cnoidal wave solution is analyzed. For given plasma parameters, our model supports only positive potential (compressive) IACW structures. The effect of relevant plasma parameters (viz., nonextensive parameter q, positron concentration p, temperature ratio σ, obliqueness l ₃) on the characteristics of IACWs is discussed in detail.

中文翻译：

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带有非扩展电子的磁化电子-正电子-离子等离子体中非线性离子声-正弦波的斜向传播

在具有不扩散电子和麦克斯韦正电子的磁化电子-正电子-离子等离子体中，对非线性静电离子-声质弦波（IACW）进行了理论研究。使用还原摄动技术，推导了Korteweg-de Vries方程，并分析了其正弦波解。对于给定的等离子体参数，我们的模型仅支持正电势（压缩）IACW结构。详细讨论了相关等离子体参数（即非扩展参数q，正电子浓度p，温度比σ，倾斜度l ₃）对IACWs特性的影响。