The Oscillation and Nonoscillation Theorems for A Class of General Second Order Functional Differential Equations
Received:May 17, 1987  
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Zhang Yushen Editorial Board Scientia sinica
Academia Sinica
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      The purpose of this paper is to give some sufficient conditions on / and g for ensuring that all solutions or all bounded solutions of general second order functional differential equation 〔r(t)g(y′(t))〕′+ f(t,y(t),y(p(t)),y′(t),y′(q(t)))=0 are oscillatory, or it has at least one bounded nonoscillatory solution.
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