Whitham equation

In mathematical physics, the Whitham equation is a non-local model for non-linear dispersive waves:

This integro-differential equation for the oscillatory variable η(x,t) is named after Gerald Whitham who introduced it as a model to study breaking of non-linear dispersive water waves in 1967.

For a certain choice of the kernel K(x − ξ) it becomes the Fornberg–Whitham equation.