3.189 problem 1189

Internal problem ID [9524]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1189.
ODE order: 2.
ODE degree: 1.

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

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

Solution by Maple

Time used: 0.047 (sec). Leaf size: 85

dsolve(x^2*diff(diff(y(x),x),x)+a*x*diff(y(x),x)+(b*x^m+c)*y(x)=0,y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.193 (sec). Leaf size: 168

DSolve[(c + b*x^m)*y[x] + a*x*y'[x] + x^2*y''[x] == 0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to m^{\frac {a-1}{m}} b^{-\frac {a-1}{2 m}} \left (x^m\right )^{-\frac {a-1}{2 m}} \left (c_1 \operatorname {Gamma}\left (1-\frac {\sqrt {a^2-2 a-4 c+1}}{m}\right ) \operatorname {BesselJ}\left (-\frac {\sqrt {a^2-2 a-4 c+1}}{m},\frac {2 \sqrt {b} \sqrt {x^m}}{m}\right )+c_2 \operatorname {Gamma}\left (\frac {m+\sqrt {a^2-2 a-4 c+1}}{m}\right ) \operatorname {BesselJ}\left (\frac {\sqrt {a^2-2 a-4 c+1}}{m},\frac {2 \sqrt {b} \sqrt {x^m}}{m}\right )\right ) \]