Research Management System دانشگاه شهید مدنی آذربایجان | On the property of (X+) for a second-order system with zero diagonal coefficient

Title	On the property of (X+) for a second-order system with zero diagonal coefficient
Type of Research	Article
Keywords	Oscillation; nonlinear differential equations; Lienard system
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.
Researchers	Asadollah Aghajani (First Researcher)، Vahid Roomi (Second Researcher)

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