2.14.6.57 problem 557 out of 2993

Link to actual problem [4735] \[ \boxed {u^{\prime \prime }+\frac {2 u^{\prime }}{x}+a^{2} u=0} \]

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 (x a \right )}{x}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {x u}{\sin \left (x a \right )}\right ] \\ \end{align*}

\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 0, \underline {\hspace {1.25 ex}}\eta &= \frac {\cos \left (x a \right )}{x}\right ] \\ \left [R &= x, S \left (R \right ) &= \frac {x u}{\cos \left (x a \right )}\right ] \\ \end{align*}