Internal problem ID [9602]
Book: Handbook of exact solutions for ordinary differential equations. By Polyanin and Zaitsev. Second
edition
Section: Chapter 1, section 1.2. Riccati Equation. 1.2.2. Equations Containing Power Functions
Problem number: 15.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [_rational, _Riccati]
Solve \begin {gather*} \boxed {x^{2} y^{\prime }-a \,x^{2} y^{2}-b \,x^{n}-c=0} \end {gather*}
✓ Solution by Maple
Time used: 0.003 (sec). Leaf size: 244
dsolve(x^2*diff(y(x),x)=a*x^2*y(x)^2+b*x^n+c,y(x), singsol=all)
\[ y \relax (x ) = \frac {\left (-\sqrt {-4 a c +1}\, c_{1}-c_{1}\right ) \BesselY \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right )+2 x^{\frac {n}{2}} \BesselY \left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right ) \sqrt {a b}\, c_{1}+\left (-\sqrt {-4 a c +1}-1\right ) \BesselJ \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right )+2 \BesselJ \left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right ) \sqrt {a b}\, x^{\frac {n}{2}}}{2 x a \left (\BesselY \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right ) c_{1}+\BesselJ \left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {a b}\, x^{\frac {n}{2}}}{n}\right )\right )} \]
✓ Solution by Mathematica
Time used: 1.583 (sec). Leaf size: 1779
DSolve[x^2*y'[x]==a*x^2*y[x]^2+b*x^n+c,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {-a^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}+1} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+1} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) b^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}}+a^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}+1} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+1} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+1}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) b^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}}-a^{\frac {i \sqrt {4 a c-1}}{n}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}+1} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) b^{\frac {i \sqrt {4 a c-1}}{n}}-i a^{\frac {i \sqrt {4 a c-1}}{n}} \sqrt {4 a c-1} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}+1} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) b^{\frac {i \sqrt {4 a c-1}}{n}}+a^{\frac {i \sqrt {4 a c-1}}{n}} n^{\frac {2 \sqrt {(1-4 a c) n^2}}{n^2}} \sqrt {(1-4 a c) n^2} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} J_{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) b^{\frac {i \sqrt {4 a c-1}}{n}}-a^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} n^{\frac {2 i \sqrt {4 a c-1}}{n}} \left (-i \sqrt {4 a c-1} n+n+\sqrt {(1-4 a c) n^2}\right ) \left (x^n\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}} J_{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) c_1 \Gamma \left (1-\frac {\sqrt {1-4 a c}}{n}\right ) b^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}-a^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}} n^{\frac {2 i \sqrt {4 a c-1}}{n}+1} \left (x^n\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+1} J_{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) c_1 \Gamma \left (1-\frac {\sqrt {1-4 a c}}{n}\right ) b^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}}+a^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}} n^{\frac {2 i \sqrt {4 a c-1}}{n}+1} \left (x^n\right )^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+1} J_{1-\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right ) c_1 \Gamma \left (1-\frac {\sqrt {1-4 a c}}{n}\right ) b^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}}}{2 a n x \sqrt {x^n} \left (a^{\frac {i \sqrt {4 a c-1}}{n}} b^{\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 {a} \sqrt {b} \sqrt {x^n}}{n}\right ) \Gamma \left (\frac {n+\sqrt {1-4 a c}}{n}\right ) \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}}+a^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}} b^{\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 {a} \sqrt {b} \sqrt {x^n}}{n}\right ) c_1 \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 {\sqrt {a} \sqrt {b} \sqrt {x^n} \left (J_{1-\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right )-J_{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right )\right )}{J_{-\frac {\sqrt {(1-4 a c) n^2}}{n^2}}\left (\frac {2 \sqrt {a} \sqrt {b} \sqrt {x^n}}{n}\right )}-\frac {\sqrt {n^2 (1-4 a c)}}{n}+i \sqrt {4 a c-1}-1}{2 a x} \\ \end{align*}