3.373 problem 1374

Internal problem ID [8953]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1374.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

Solve \begin {gather*} \boxed {y^{\prime \prime }-\frac {2 x \left (-1+2 a \right ) y^{\prime }}{x^{2}-1}+\frac {\left (x^{2} \left (2 a \left (-1+2 a \right )-v \left (v +1\right )\right )+2 a +v \left (v +1\right )\right ) y}{\left (x^{2}-1\right )^{2}}=0} \end {gather*}

Solution by Maple

Time used: 0.013 (sec). Leaf size: 29

dsolve(diff(diff(y(x),x),x) = 2*x*(2*a-1)/(x^2-1)*diff(y(x),x)-(x^2*(2*a*(2*a-1)-v*(v+1))+2*a+v*(v+1))/(x^2-1)^2*y(x),y(x), singsol=all)
 

\[ y \relax (x ) = c_{1} \left (x^{2}-1\right )^{a} \LegendreP \left (v , x\right )+c_{2} \left (x^{2}-1\right )^{a} \LegendreQ \left (v , x\right ) \]

Solution by Mathematica

Time used: 0.021 (sec). Leaf size: 26

DSolve[y''[x] == -(((2*a + v*(1 + v) + (2*a*(-1 + 2*a) - v*(1 + v))*x^2)*y[x])/(-1 + x^2)^2) + (2*(-1 + 2*a)*x*y'[x])/(-1 + x^2),y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \left (x^2-1\right )^a (c_1 P_v(x)+c_2 Q_v(x)) \\ \end{align*}