Internal problem ID [10413]
Book: Handbook of exact solutions for ordinary differential equations. By Polyanin and Zaitsev.
Second edition
Section: Chapter 1, section 1.2. Riccati Equation. subsection 1.2.3. Equations Containing
Exponential Functions
Problem number: 5.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [_Riccati]
\[ \boxed {y^{\prime }-y^{2}-y b=a \left (\lambda -b \right ) {\mathrm e}^{\lambda x}-a^{2} {\mathrm e}^{2 \lambda x}} \]
✓ Solution by Maple
Time used: 0.015 (sec). Leaf size: 80
dsolve(diff(y(x),x)=y(x)^2+b*y(x)+a*(lambda-b)*exp(lambda*x)-a^2*exp(2*lambda*x),y(x), singsol=all)
\[ y \left (x \right ) = \frac {{\mathrm e}^{x \lambda } a \left (\int {\mathrm e}^{\frac {b \lambda x +2 \,{\mathrm e}^{x \lambda } a}{\lambda }}d x \right )+{\mathrm e}^{x \lambda } c_{1} a -{\mathrm e}^{\frac {b \lambda x +2 \,{\mathrm e}^{x \lambda } a}{\lambda }}}{\int {\mathrm e}^{\frac {b \lambda x +2 \,{\mathrm e}^{x \lambda } a}{\lambda }}d x +c_{1}} \]
✓ Solution by Mathematica
Time used: 3.226 (sec). Leaf size: 191
DSolve[y'[x]==y[x]^2+b*y[x]+a*(\[Lambda]-b)*Exp[\[Lambda]*x]-a^2*Exp[2*\[Lambda]*x],y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {-2^{b/\lambda } \left (b-a e^{\lambda x}\right ) \left (\frac {a e^{\lambda x}}{\lambda }\right )^{b/\lambda } L_{-\frac {b}{\lambda }}^{\frac {b}{\lambda }}\left (\frac {2 a e^{x \lambda }}{\lambda }\right )+a e^{\lambda x} \left (2^{\frac {b+\lambda }{\lambda }} \left (\frac {a e^{\lambda x}}{\lambda }\right )^{b/\lambda } L_{-\frac {b+\lambda }{\lambda }}^{\frac {b+\lambda }{\lambda }}\left (\frac {2 a e^{x \lambda }}{\lambda }\right )+c_1\right )}{2^{b/\lambda } \left (\frac {a e^{\lambda x}}{\lambda }\right )^{b/\lambda } L_{-\frac {b}{\lambda }}^{\frac {b}{\lambda }}\left (\frac {2 a e^{x \lambda }}{\lambda }\right )+c_1} \\ y(x)\to a e^{\lambda x} \\ \end{align*}