The oscillation of certain higher-order functional differential equations (Q597387)

Oscillation criteria are established for functional-differential equations of the general form \[ \begin{multlined}(d/(dt))([(1/(a_{n-1}(t)))(d/(dt))(1/(a_{n-2}(t)))(d/(dt))\\ \dots(1/(a(t)))(d/(dt))x(t)]^{\alpha})+q(t)f(x[g(t)])=0,\end{multlined} \] where \(n\) is even.