Internal problem ID [9594]
Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1259.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [_Jacobi]
\[ \boxed {x \left (x -1\right ) y^{\prime \prime }+\left (\left (1+a \right ) x +b \right ) y^{\prime }-l y=0} \]
✓ Solution by Maple
Time used: 0.125 (sec). Leaf size: 92
dsolve(x*(x-1)*diff(diff(y(x),x),x)+((a+1)*x+b)*diff(y(x),x)-l*y(x)=0,y(x), singsol=all)
\[ y \left (x \right ) = c_{1} \operatorname {hypergeom}\left (\left [\frac {a}{2}-\frac {\sqrt {a^{2}+4 l}}{2}, \frac {a}{2}+\frac {\sqrt {a^{2}+4 l}}{2}\right ], \left [-b \right ], x\right )+c_{2} x^{b +1} \operatorname {hypergeom}\left (\left [\frac {a}{2}-\frac {\sqrt {a^{2}+4 l}}{2}+b +1, \frac {a}{2}+\frac {\sqrt {a^{2}+4 l}}{2}+b +1\right ], \left [b +2\right ], x\right ) \]
✓ Solution by Mathematica
Time used: 0.183 (sec). Leaf size: 111
DSolve[-(l*y[x]) + (b + (1 + a)*x)*y'[x] + (-1 + x)*x*y''[x] == 0,y[x],x,IncludeSingularSolutions -> True]
\[ y(x)\to c_1 \operatorname {Hypergeometric2F1}\left (\frac {1}{2} \left (a-\sqrt {a^2+4 l}\right ),\frac {1}{2} \left (a+\sqrt {a^2+4 l}\right ),-b,x\right )-(-1)^b c_2 x^{b+1} \operatorname {Hypergeometric2F1}\left (\frac {1}{2} \left (a+2 b-\sqrt {a^2+4 l}+2\right ),\frac {1}{2} \left (a+2 b+\sqrt {a^2+4 l}+2\right ),b+2,x\right ) \]