Improved algebraic lower bound for the radius of spatial analyticity for the generalized KdV equation

Mikaela Baldasso, Mahendra Panthee

We consider the initial value problema (IVP) for the generalized Korteweg-de Vries (gKdV) equation \begin{equation} \begin{cases} \partial_tu+\partial_x^3u+μu^k\partial_xu=0, \,\;\…