2.14.23.8 problem 2208 out of 2993

Link to actual problem [9986] \[ \boxed {y^{\prime \prime } x +2 y^{\prime }+a \,x^{v} y^{n}=0} \]

type detected by program

{"unknown"}

type detected by Maple

[[_Emden, _Fowler], [_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 &= -\frac {x \left (n -1\right )}{v +1}, \underline {\hspace {1.25 ex}}\eta &= y\right ] \\ \left [R &= y x^{\frac {v +1}{n -1}}, S \left (R \right ) &= -\frac {\left (v +1\right ) \ln \left (x \right )}{n -1}\right ] \\ \end{align*}