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   Oscillation and asymptotic behaviour of a higher-order nonlinear neutral-type functional differential equation with oscillating coefficients  
   
نویسنده yildiz m.k. ,karaman e. ,durur h.
منبع journal of applied mathematics - 2011 - دوره : 2011 - شماره : 0
چکیده    We will study oscillation of bounded solutions of higher-order nonlinear neutral delay differential equations of the following type: [y(t)+p(t)f(y((t)))] (n) + q (t) h (y (δ(t))) = 0,t ≥ t 0,t ∈ r,where p ∈ c ([t0,ℝ),r),limt → ∞ p (t) = 0,q ∈ c ([t0,∞ ),ℝ+),τ(t),δ(t) ∈ c ([ t0,∞ ),ℝ),τ(t),δ(t) < t,lim t → ∞ τ(t),δ(t) = ∞,and f,h ∈ c (ℝ,ℝ). we obtain sufficient conditions for the oscillation of all solutions of this equation. © 2011 mustafa kemal yildiz et al.
آدرس department of mathematics,faculty of science and arts,afyon kocatepe university, Turkey, department of mathematics,faculty of science and arts,karabük university, Turkey, department of technical programs,vocational high school of ardahan,ardahan university, Turkey
 
     
   
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