In this study, the properties of ion-and positron-acoustic solitons are investigated in a magnetized multi-component plasma system consisting of warm fluid ions, warm fluid positrons, q-non-extensive distributed positrons, q-non-extensive distributed electrons, and immobile dust particles. To drive the Korteweg-de Vries (KdV) equation, the reductive perturbation method is used. The effects of the ratio of the density of positrons to ions, the temperature of the positrons, and ions to electrons, the non-extensivity parameters q e and q p , and the angle of the propagation of the wave with the magnetic field on the potential of ion-and positron-acoustic solitons are also studied. The present investigation is applicable to solitons in fusion plasmas in the edge of tokamak.

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Properties of nonlinear electrostatic solitary waves in a magnetized multicomponent system of plasma containing of warm fluid ions, weakly relativistic warm fluid electrons and q-nonextensive distributed electrons using reductive perturbation method, have been surveyed. For this purpose, a KdV soliton type solution has been employed. The dependence of solitary wave structure, solitary wave maximum amplitude, and phase velocity of soliton on the plasma parameters is defined numerically.

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