Cauchy data
= Cauchy data
{wiki=Cauchy_problem#Cauchy_data}
For a scalar equation of order $k$, Cauchy data consist of the first $k$ normal jets $u,\partial_Nu,\ldots,\partial_N^{k-1}u$ on the initial hypersurface.
= Cauchy data
{wiki=Cauchy_problem#Cauchy_data}
For a scalar equation of order $k$, Cauchy data consist of the first $k$ normal jets $u,\partial_Nu,\ldots,\partial_N^{k-1}u$ on the initial hypersurface.