“…These waves, which oscillate and include pulses, move between stable steady states. The NW equation is also relevant to Rayleigh-Benard convection, chemical processes, Faraday instability, and biological systems [32].The homotopy perturbation approach [33], discrimination algorithm [34], differential transform method [35], homotopy analysis method [36], and (G'/G)-expansion method [37] are only a few of the methods that have been devised to solve the KPP problem.KPP equations are often solved using numerical techniques or series solutions. The FIM (exact solutions by Fourier integral method) approach was used in this work to get precise solutions for the KPP, FHN, and NW equations.…”