The oscillatory behaviour of the solutions to the equation \(x''+ f(x)x' + s(t,x,x')=0\) (Q2771365)

This paper contains sufficient conditions (to complicate to be presented here) for the solutions to the differential equation NEWLINE\[NEWLINEx''+ f(x) x'+ s(t,x,x')= 0NEWLINE\]NEWLINE to be oscillatory, with \(f\in C(\mathbb{R}, \mathbb{R})\) and \(s\in C([t_1,\infty)\times \mathbb{R}\times \mathbb{R},\mathbb{R})\). Two illustrative examples are included.NEWLINENEWLINEFor the entire collection see [Zbl 0969.00044].