Application of the Tanh-Coth and HSI methods in deriving exact analytical solutions for the STFKS equation. - Abaker Hassaballa; Elzain A. E. Gumma; Ahmed M. A Adam; Omer M. A. Hamed; Ali Satty; Mohyaldein Salih; Faroug A. Abdalla; Zakariya M. S. Mohammed (Frontiers Appl. Math. Stat., 2025)