Calogero–Degasperis–Fokas equation

In mathematics, the Calogero–Degasperis–Fokas equation is the nonlinear partial differential equation

:$\backslash displaystyle\; u\_t=u\_\{xxx\}-\backslash frac\{1\}\{8\}u\_x^3\; +\; u\_x\backslash left(Ae^u+Be^\{-u\}\backslash right).$

This equation was named after F. Calogero, A. Degasperis, and A. Fokas.