2.14.2.98 problem 198 out of 2993

Link to actual problem [1307] \[ \boxed {2 x^{2} y^{\prime \prime }+x \left (x +5\right ) y^{\prime }-\left (-3 x +2\right ) y=0} \] With the expansion point for the power series method at \(x = 0\).

type detected by program

{"second order series method. Regular singular point. Difference not integer"}

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 &= \sqrt {x}\, {\mathrm e}^{-\frac {x}{2}}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {{\mathrm e}^{\frac {x}{2}} y}{\sqrt {x}}\right ] \\ \end{align*}

\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= 2+\frac {i {\mathrm e}^{-\frac {x}{2}} x^{\frac {5}{2}} \sqrt {\pi }\, \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, \sqrt {x}}{2}\right )+2 x +6}{x^{2}}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {x^{2} {\mathrm e}^{\frac {x}{2}} y}{i x^{\frac {5}{2}} \sqrt {\pi }\, \operatorname {erf}\left (\frac {i \sqrt {2}\, \sqrt {x}}{2}\right ) \sqrt {2}+2 \,{\mathrm e}^{\frac {x}{2}} \left (x^{2}+x +3\right )}\right ] \\ \end{align*}