New (3+1)-dimensional equations of Burgers type and Sharma-Tasso-Olver type: multiple-soliton solutions

We construct new ()-dimensional Burgers and Sharma-Tasso-Olver-type equations. We determine the dispersion relation for each of the newly derived models. By using the simplified Hirota's method, we derive multiple-soliton solutions for each equation. We derive a generalized dispersion relation that works for both equations.