3.403 problem 1409

Internal problem ID [9737]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1409.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_Emden, _Fowler], [_2nd_order, _linear, `_with_symmetry_[0,F(x)]`]]

\[ \boxed {y^{\prime \prime }+a \,x^{2 a -1} x^{-2 a} y^{\prime }+b^{2} x^{-2 a} y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 39

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

\[ y \left (x \right ) = c_{1} \sin \left (\frac {b \,x^{-a +1}}{a -1}\right )+c_{2} \cos \left (\frac {b \,x^{-a +1}}{a -1}\right ) \]

Solution by Mathematica

Time used: 0.044 (sec). Leaf size: 44

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

\[ y(x)\to c_1 \cos \left (\frac {b x^{1-a}}{a-1}\right )+c_2 \sin \left (\frac {b x^{1-a}}{1-a}\right ) \]