Showing 1 results for Keywords: Oscillation; Nonlinear Differential Equations; Lienard System
A. Aghajani , V. Roomi ,
Volume 18, Issue 1 (1-2007)
Abstract
Abstract: This paper investigates the problem of whether all trajectories of the system and cross the vertical isocline, which is very important for the existence of periodic solutions and oscillation theory. Sufficient conditions are given for all trajectories to cross the vertical isocline.