Some aspects of the solitary waves in a relativistic inhomogeneous plasma

Nonlinear Korteweg–de Vries–Burger equation for ion acoustic shock waves in a weakly relativistic electron-positron-ion plasma with thermal ions

“…The evolution of ion acoustic solitons in an inhomogeneous relativistic plasmas is governed by pseudo-KdV equation, which accepts both compressive and rarefactive solitons depending on the sign of nonlinear coefficient arising due to multi-temperature electrons and modeling of plasma constituents. 30 The finite amplitude nonlinear dust ion acoustic waves in an inhomogeneous dusty plasma have been investigated in Ref. 31.…”