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Existence of Almost Periodic Solutions For a Class of Nonlinear Duffing Equations
Duffing equations nonlinear almost periodic Stepanov almost periodic exponential dichotomy
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2009/6/16
In this paper, we discuss the existence of almost periodic solutions for a class of nonlinear
Duffing equations. Some new theorems are established to ensure that the existence
of almost periodic sol...
TWO PERIODIC SOLUTIONS OF N-DIMENSIONAL FIRST-ORDER NEUTRAL FUNCTIONAL DIFFERENTIAL SYSTEMS
Fixed point theorem Periodic solution Multiplicity Neutral functional differential system ndimensional system
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2008/11/26
In this paper, we establish existence, multiplicity and nonexistence of periodic solutions for a class
of first-order n-dimensional neutral functional differential equations. Our results improve the ...
PERIODIC SOLUTIONS OF NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATIONS WITH TWO PARAMETERS
Fixed point theorem positive periodic solution multiplicity neutral functional differential equations
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2008/11/25
In this paper, we establish the existence, multiplicity and nonexistence of periodic
solutions for a class of first-order neutral functional differential equations. Our results
improve the previous ...
THE EXISTENCE AND NONEXISTENCE OF POSITIVE PERIODIC SOLUTIONS FOR NEUTRAL DELAY COMPETITION MODEL
Coincidence degree neutral functional differential equation positive periodic solution
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2008/11/25
By using the theory of coincidence degree, sufficient conditions for the existence and
nonexistence of positive periodic solutions of a class of neutral delay competition model
are obtained.
Two Periodic Solutions of Nonlinear Systems with Feedback Control
Positive periodic solutions Functional differential system Fixed point theorem Fixed point index Feedback control
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2008/11/25
Two Periodic Solutions of Nonlinear Systems with Feedback Control。