2.14.28.91 problem 2791 out of 2993

Link to actual problem [13783] \[ \boxed {x^{2} y^{\prime \prime }+y^{\prime } x -9 y=12 x^{3}} \]

type detected by program

{"kovacic", "second_order_euler_ode", "second_order_change_of_variable_on_x_method_1", "second_order_change_of_variable_on_x_method_2", "second_order_change_of_variable_on_y_method_2"}

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*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= {\mathrm e}^{3 i \sqrt {-\frac {1}{x^{2}}}\, x \ln \left (x \right )}\right ] \\ \left [R &= x, S \left (R \right ) &= x^{-3 i \sqrt {-\frac {1}{x^{2}}}\, x} y\right ] \\ \end{align*}

\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= \frac {x}{3}, \underline {\hspace {1.25 ex}}\eta &= y\right ] \\ \left [R &= \frac {y}{x^{3}}, S \left (R \right ) &= 3 \ln \left (x \right )\right ] \\ \end{align*}