2.14.4.94 problem 394 out of 2993

Link to actual problem [2387] \[ \boxed {2 x^{2} y^{\prime \prime }-3 \left (x^{2}+x \right ) y^{\prime }+\left (2+3 x \right ) y=0} \] 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 {3 x}{2}}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {{\mathrm e}^{-\frac {3 x}{2}} y}{\sqrt {x}}\right ] \\ \end{align*}

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