kernel

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kernel

$\begin{usage} kernel(L, a) \end{usage}$

Signature

kernel: (RXD, R) $\to$ Vector Fx

$\begin{params} {\em L} & RXD & A linear ordinary differential operator\\ {\em a} & R & An ordinary point of L\\\end{params}$

$\begin{retval} Returns a basis for the series solutions of $Ly = 0$around $x = a$. \end{retval}$

Manuel Bronstein 2000-12-13