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delay
It is a fact that the feedback delay actually arises in digital control systems.
      
Global attractivity in a generalized delay logistic equation
      
In this paper we further study the delay differential equation
      
In this paper, a sufficient condition for boundedness and persistence of the solutions of the following delay difference equation is obtained.
      
Linearized oscillations of delay differential equations and applications
      
The necessary and sufficient conditions for the oscillations of every solution of the nonlinear delay equation x(t)+f(itx(t-l))+g(itx([t-k])) = 0 are oblained.
      
In this paper, the higher-order neutral differential equation with continuous distributed delay is concerned and the oscillatory criteria are given.
      
Furthermore, a similar result to the periodic boundary value problem of functional differential equations with infinite delay is established.
      
Distribution of zeros of solutions of first order delay differential equations
      
The paper gives two estimates of the distance between adjacent zeros of solutions of the first-order delay differential equations x'(t)+p(t)x(t-τ)=0 in the case when p(t)≥0 and oscillates or p(t) itself oscillates.
      
Multiple positive solutions of a singular (n-1, 1) conjugate boundary value problem with delay
      
Oscillation of first order delay differential equations with oscillating coefficients
      
Oscillation of delay differential equations with piecewise constant argument
      
The delay differential equation with piecewise constant argument x'(t)+a(t)x(t)+b(t)x ([t-k])=0 is considered, where a(t) and b(t) are continuous functions on [-k, ∞), b(t)≥0, k is a positive integer and [·] denotes the greatest integer function.
      
Existence of positive solutions and 1/c-global attractivity of a nonlinear delay difference equation with variable coefficients
      
Global asymptotic stability for a nonlinear delay difference equation
      
In this paper, a sufficient condition for the global asymptotic stability of the solutions of the following nonlinear delay difference equation is obtained, where aε [0,∞] and the initial values x-2,x-1,x0ε (0,∞).
      
The existence of a liapunov functional for linear delay system
      
Existence of positive solution for a two-patches competition system with diffusion and time delay and functional response
      
Analysis of an SIS epidemiologic model with variable population size and a delay
      
 

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