Internal problem ID [3015]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 10
Problem number: 267.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [_rational, _Riccati]
Solve \begin {gather*} \boxed {y^{\prime } x^{2}-a -b \,x^{n}-c \,x^{2} y^{2}=0} \end {gather*}
✓ Solution by Maple
Time used: 0.016 (sec). Leaf size: 239
dsolve(x^2*diff(y(x),x) = a+b*x^n+c*x^2*y(x)^2,y(x), singsol=all)
\[ y \relax (x ) = -\frac {\left (\sqrt {-4 a c +1}\, c_{1}+c_{1}\right ) \BesselY \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )-2 \BesselY \left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) x^{\frac {n}{2}} \sqrt {c b}\, c_{1}+\left (\sqrt {-4 a c +1}+1\right ) \BesselJ \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )-2 \BesselJ \left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) \sqrt {c b}\, x^{\frac {n}{2}}}{2 x c \left (\BesselY \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) c_{1}+\BesselJ \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )\right )} \]
✓ Solution by Mathematica
Time used: 0.904 (sec). Leaf size: 931
DSolve[x^2 y'[x]==a+b x^n+c x^2 y[x]^2,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {b^{\frac {i \sqrt {4 a c-1}}{n}} c^{\frac {i \sqrt {4 a c-1}}{n}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}} \text {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) \left (2 b c x^n \left (\frac {\sqrt {b} \sqrt {c} \sqrt [3]{\left (x^n\right )^{3/2}}}{n}\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} \, _0\tilde {F}_1\left (;\frac {\sqrt {(1-4 a c) n^2}}{n^2}+2;-\frac {b c x^n}{n^2}\right )-i \left (\sqrt {4 a c-1}-i\right ) n \left (\frac {\sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} \, _0\tilde {F}_1\left (;\frac {\sqrt {(1-4 a c) n^2}}{n^2}+1;-\frac {b c x^n}{n^2}\right )\right ) \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}}+b^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} c^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} n^{\frac {2 i \sqrt {4 a c-1}}{n}} \left (\frac {\sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right )^{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}} c_1 \text {Gamma}\left (1-\frac {\sqrt {1-4 a c}}{n}\right ) \left (2 b c \, _0\tilde {F}_1\left (;2-\frac {\sqrt {(1-4 a c) n^2}}{n^2};-\frac {b c x^n}{n^2}\right ) x^n+i \left (\sqrt {4 a c-1}+i\right ) n \, _0\tilde {F}_1\left (;1-\frac {\sqrt {(1-4 a c) n^2}}{n^2};-\frac {b c x^n}{n^2}\right )\right ) \left (x^n\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}}}{2 c n x \sqrt {x^n} \left (b^{\frac {i \sqrt {4 a c-1}}{n}} c^{\frac {i \sqrt {4 a c-1}}{n}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \text {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}}+b^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} c^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} n^{\frac {2 i \sqrt {4 a c-1}}{n}} J_{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) c_1 \text {Gamma}\left (1-\frac {\sqrt {1-4 a c}}{n}\right ) \left (x^n\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\right )} \\ y(x)\to \frac {\frac {2 b c x^n \, _0\tilde {F}_1\left (;2-\frac {\sqrt {(1-4 a c) n^2}}{n^2};-\frac {b c x^n}{n^2}\right )}{n \, _0\tilde {F}_1\left (;1-\frac {\sqrt {(1-4 a c) n^2}}{n^2};-\frac {b c x^n}{n^2}\right )}+i \sqrt {4 a c-1}-1}{2 c x} \\ \end{align*}