Link to actual problem [14630] \[ \boxed {t y^{\prime \prime }+2 y^{\prime }+y t=-t} \] With initial conditions \begin {align*} \left [y \left (\pi \right ) = -1, y^{\prime }\left (\pi \right ) = -\frac {1}{\pi }\right ] \end {align*}
type detected by program
{"kovacic", "second_order_bessel_ode", "second_order_change_of_variable_on_y_method_1"}
type detected by Maple
[[_2nd_order, _with_linear_symmetries]]
Maple symgen result This shows Maple’s found \(\xi ,\eta \) and the corresponding canonical coordinates \(R,S\)\begin{align*} \\ \\ \end{align*}
\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= \frac {\sin \left (t \right )}{t}\right ] \\ \left [R &= t, S \left (R \right ) &= \frac {t y}{\sin \left (t \right )}\right ] \\ \end{align*}
\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= \frac {\cos \left (t \right )}{t}\right ] \\ \left [R &= t, S \left (R \right ) &= \frac {t y}{\cos \left (t \right )}\right ] \\ \end{align*}