Link to actual problem [6913] \[ \boxed {\left (2 x^{2}+1\right ) y^{\prime \prime }+11 x y^{\prime }+9 y=0} \] With the expansion point for the power series method at \(x = 0\).
type detected by program
{"second order series method. Ordinary point", "second order series method. Taylor series method"}
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 {\operatorname {LegendreP}\left (\frac {1}{4}, \frac {7}{4}, i \sqrt {2}\, x \right )}{\left (2 x^{2}+1\right )^{\frac {7}{8}}}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {\left (2 x^{2}+1\right )^{\frac {7}{8}} y}{\operatorname {LegendreP}\left (\frac {1}{4}, \frac {7}{4}, i \sqrt {2}\, x \right )}\right ] \\ \end{align*}
\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= \frac {\operatorname {LegendreQ}\left (\frac {1}{4}, \frac {7}{4}, i \sqrt {2}\, x \right )}{\left (2 x^{2}+1\right )^{\frac {7}{8}}}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {\left (2 x^{2}+1\right )^{\frac {7}{8}} y}{\operatorname {LegendreQ}\left (\frac {1}{4}, \frac {7}{4}, i \sqrt {2}\, x \right )}\right ] \\ \end{align*}