\[ a (b x-1) y''(x)+a b y'(x)+\lambda y(x)+y^{(4)}(x)=0 \] ✗ Mathematica : cpu = 0.295317 (sec), leaf count = 0
, DifferentialRoot result
\[\left \{\left \{y(x)\to (x)\right \}\right \}\]
✗ Maple : cpu = 0. (sec), leaf count = 0
, result contains DESol or ODESolStruc
\[y \relax (x ) = \mathit {DESol}\left (\left \{\lambda \textit {\_Y} \relax (x )+a b \left (\frac {d}{d x}\textit {\_Y} \relax (x )\right )+a \left (b x -1\right ) \left (\frac {d^{2}}{d x^{2}}\textit {\_Y} \relax (x )\right )+\frac {d^{4}}{d x^{4}}\textit {\_Y} \relax (x )\right \}, \left \{\textit {\_Y} \relax (x )\right \}\right )\]