2.12.4.44 problem 344 out of 373

Link to actual problem [13398] \[ \boxed {y^{\prime }+3 y-\frac {28 \,{\mathrm e}^{2 x}}{y^{3}}=0} \]

type detected by program

{"bernoulli", "exactWithIntegrationFactor", "first_order_ode_lie_symmetry_lookup"}

type detected by Maple

[[_1st_order, _with_linear_symmetries], _Bernoulli]

Maple symgen result This shows Maple’s found \(\xi ,\eta \) and the corresponding canonical coordinates \(R,S\)\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= 1, \underline {\hspace {1.25 ex}}\eta &= \frac {y}{2}\right ] \\ \left [R &= y \,{\mathrm e}^{-\frac {x}{2}}, S \left (R \right ) &= x\right ] \\ \end{align*}

My program’s symgen result This shows my program’s found \(\xi ,\eta \) and the corresponding ODE in canonical coordinates \(R,S\).\begin{align*} \xi &= 0 \\ \eta &=\frac {{\mathrm e}^{-12 x}}{y^{3}} \\ \frac {dS}{dR} &= 28 \,{\mathrm e}^{14 R} \\ \end{align*}