3.362 problem 1363

Internal problem ID [9697]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1363.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {y^{\prime \prime }+\frac {\left (a \,x^{2}+a -2\right ) y^{\prime }}{x \left (x^{2}-1\right )}+\frac {b y}{x^{2}}=0} \]

Solution by Maple

Time used: 0.125 (sec). Leaf size: 171

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

\[ y \left (x \right ) = c_{1} x^{\frac {a}{2}-\frac {1}{2}+\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}} \left (x^{2}-1\right )^{-a +2} \operatorname {hypergeom}\left (\left [-\frac {a}{2}+\frac {3}{2}, -\frac {a}{2}+\frac {3}{2}+\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}\right ], \left [1+\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}\right ], x^{2}\right )+c_{2} x^{\frac {a}{2}-\frac {1}{2}-\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}} \left (x^{2}-1\right )^{-a +2} \operatorname {hypergeom}\left (\left [-\frac {a}{2}+\frac {3}{2}, -\frac {a}{2}+\frac {3}{2}-\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}\right ], \left [1-\frac {\sqrt {a^{2}-2 a -4 b +1}}{2}\right ], x^{2}\right ) \]

Solution by Mathematica

Time used: 0.733 (sec). Leaf size: 212

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

\[ y(x)\to -(-1)^{\frac {1}{4} \left (-\sqrt {a^2-2 a-4 b+1}+a+3\right )} x^{\frac {1}{2} \left (-\sqrt {a^2-2 a-4 b+1}+a-1\right )} \left (c_1 \operatorname {Hypergeometric2F1}\left (\frac {a-1}{2},\frac {1}{2} \left (a-\sqrt {a^2-2 a-4 b+1}-1\right ),1-\frac {1}{2} \sqrt {a^2-2 a-4 b+1},x^2\right )+c_2 i^{\sqrt {a^2-2 a-4 b+1}} x^{\sqrt {a^2-2 a-4 b+1}} \operatorname {Hypergeometric2F1}\left (\frac {a-1}{2},\frac {1}{2} \left (a+\sqrt {a^2-2 a-4 b+1}-1\right ),\frac {1}{2} \left (\sqrt {a^2-2 a-4 b+1}+2\right ),x^2\right )\right ) \]