A geometrical demonstration for continuation of solutions of the generalised BBM equation
arXiv:2006.12649 · doi:10.1007/s00605-020-01453-0
Abstract
A simple proof that if the generalised BBM equation has a solution vanishing on an open sent of its domain then the solution is necessarily zero is given. In particular, the only compactly supported solution of the equation under consideration is the identically vanishing one.