Internal problem ID [3523]
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]
\[ \boxed {x^{2} y^{\prime }-y^{2} c \,x^{2}=a +b \,x^{n}} \]
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 244
dsolve(x^2*diff(y(x),x) = a+b*x^n+c*x^2*y(x)^2,y(x), singsol=all)
\[ y \left (x \right ) = \frac {\left (-\sqrt {-4 a c +1}\, c_{1} -c_{1} \right ) \operatorname {BesselY}\left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )+2 x^{\frac {n}{2}} \operatorname {BesselY}\left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) \sqrt {c b}\, c_{1} +\left (-\sqrt {-4 a c +1}-1\right ) \operatorname {BesselJ}\left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )+2 \operatorname {BesselJ}\left (\frac {\sqrt {-4 a c +1}+n}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) \sqrt {c b}\, x^{\frac {n}{2}}}{2 x c \left (\operatorname {BesselY}\left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right ) c_{1} +\operatorname {BesselJ}\left (\frac {\sqrt {-4 a c +1}}{n}, \frac {2 \sqrt {c b}\, x^{\frac {n}{2}}}{n}\right )\right )} \]
✓ Solution by Mathematica
Time used: 1.136 (sec). Leaf size: 1779
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}+\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} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1,\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) c^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}}+b^{\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} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2}+1,\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) c^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}}-b^{\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}} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) c^{\frac {i \sqrt {4 a c-1}}{n}}-i b^{\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}} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) c^{\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}} \sqrt {(1-4 a c) n^2} \left (x^n\right )^{\frac {i \sqrt {4 a c-1}}{n}+\frac {1}{2}} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {Gamma}\left (\frac {n+\sqrt {1-4 a c}}{n}\right ) c^{\frac {i \sqrt {4 a c-1}}{n}}-b^{\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}} \operatorname {BesselJ}\left (-\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) c_1 \operatorname {Gamma}\left (1-\frac {\sqrt {1-4 a c}}{n}\right ) c^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}}-b^{\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} \operatorname {BesselJ}\left (-\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1,\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) c_1 \operatorname {Gamma}\left (1-\frac {\sqrt {1-4 a c}}{n}\right ) c^{\frac {\sqrt {(1-4 a c) n^2}}{n^2}+\frac {1}{2}}+b^{\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} \operatorname {BesselJ}\left (1-\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) c_1 \operatorname {Gamma}\left (1-\frac {\sqrt {1-4 a c}}{n}\right ) c^{\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}} \operatorname {BesselJ}\left (\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) \operatorname {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}} \operatorname {BesselJ}\left (-\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right ) c_1 \operatorname {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 {b} \sqrt {c} \sqrt {x^n} \left (\operatorname {BesselJ}\left (1-\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right )-\operatorname {BesselJ}\left (-\frac {\sqrt {(1-4 a c) n^2}}{n^2}-1,\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right )\right )}{\operatorname {BesselJ}\left (-\frac {\sqrt {(1-4 a c) n^2}}{n^2},\frac {2 \sqrt {b} \sqrt {c} \sqrt {x^n}}{n}\right )}-\frac {\sqrt {n^2 (1-4 a c)}}{n}+i \sqrt {4 a c-1}-1}{2 c x} \end{align*}