The generalized (1+11+1)-dimensional and (2+12+1)-dimensional Ito equations: Multiple exp-function algorithm and multiple wave solutions

The multiple exp-function algorithm, as a generalization of Hirota’s perturbation scheme, is used to construct multiple wave solutions to the generalized (1+11+1)-dimensional and (2+12+1)-dimensional Ito equations. Some of the resulting solutions involve generic phase shifts and wave frequencies.