Oscillation and nonoscillation criteria for quasilinear differential equations (Q1883426)

Using a technique similar to that exploited by \textit{Á. Elbert} in [J. Math. Anal. Appl. 226, 207--219 (1998; Zbl 0913.34028)] for the study of the second-order linear differential equation \[ x^{\prime\prime}+q(t)x=0,\qquad t\geq t_{\ast}>0, \] the author extends oscillation and nonoscillation results obtained in the cited paper to the quasilinear differential equation \[ \left( \left| u^{\prime}\right| ^{p-1}u^{\prime}\right) ^{\prime }+q(t)\left| u\right| ^{p-1}u=0, \] with \(p\in(0,1].\)