Nonlinear ion acoustic excitations in relativistic degenerate, astrophysical electron-positron-ion plasmas – CORRIGENDUM.

A misprint occured in equation 26 in the original article (Ur-Rahman et al. 2013). The correct equation is provided below. \[ \zeta=\epsilon^{1/2}\left(x-\lambda t\right) \rm{, \ \ }\tau=\epsilon^{3/2}t\rm{.}% \] This misprint does not affect the calculations, the figures and the discussion presented in the original article. [ABSTRACT FROM AUTHOR]