In this work, we present new applications of the reduced differential
transform method (RDTM) by handling two nonlinear
physical models, namely, generalized Drinfeld–Sokolov (gDS)
equations and Kaup–Kupershmidt (KK) equation. This
method is an alternative approach to overcome the demerit of
complex calculation of differential transform method (DTM).
The proposed technique, which does not require linearization,
discretization or perturbation, gives the solution in the form of
convergent power series with elegantly computed components.
Therefore, the solution procedure of the RDTM is simpler than
other traditional methods. The results show that the RDTMis a
powerful mathematical tool for handling nonlinear PDEs.