Abstract
The present paper studies two various models with two different types: the nonlinear Schrodinger equation with power-law nonlinearity and the (3 + 1)-dimensional nonlinear Schrodinger equation. We perform the modified (G '/G)-expansion method to find some exact solutions and to construct various types of solitary wave phenomena for each equation. The received aspects contribute to the firm mathematical foundation and might be essential to the soliton waves. As a result, we obtain all the solutions from Wazwaz [Math. Comput. Modell. 43, 178-184 (2016)] and also obtain some new soliton solutions. (c) 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).