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In this paper we investigate the boundedness, the persistence and the attractivity of the positive solutions of the nonautonomous difference equation
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In this note we improve Theorem 2 in Ref. [3] , about the difference equation x n +1 = ~ i =0 k f i x n m i p i , n =0,1,2,..., where k is a positive integer, f i , p i ] (0, X ) for i =0,..., k , and the initial conditions x m k , x m k +1 ,..., x 0 are arbitrary positive numbers.  相似文献   

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In this paper we study the boundedness and the asymptotic behavior of the positive solutions of the system of difference equations
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The boundedness character of positive solutions of two nonlinear fourth-order difference equations, which are particular cases of two large classes of difference equations by Stevi?, are studied in this paper.  相似文献   

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This paper studies the boundedness character of the positive solutions of the difference equation
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讨论非线性模糊差分方程xn+1=a+bxn/A+xn-1(n=0,1,…)正解的存在性、有界性及正解的渐近表现。其中是正模糊数数列、及初始值是正模糊数。  相似文献   

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The boundedness character of positive solutions of the following max-type difference equation
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讨论一阶模糊差分方程xn+1=Axn+B(n=0,1,…)正解的存在性、有界性及正解的渐近表现.其中(xn)是正模糊数数列, A,B,x0是正模糊数.  相似文献   

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本文考查下列高阶有理差分方程xn+1=(α+B1xn-1+B3xn-3+…+B2k+1xn-2k-1)/(A+B0xn+B2xn-2+…+B2kxn-2k,),n=0,1,…,其中k是非负整数,参数α,A,Bi,i=0,1,2,…,2k+1和初始值x-2k-1,x-2k,x-2k+1,…,x0是非负实数.给出充分条件,在此条件下当且仅当∑k+1i=1B2i-1=A时,方程的每个解收敛于方程的一个二周期解.  相似文献   

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Consider the third-order difference equation x n+1 = (α+βx n +δx n ? 2)/(x n ? 1) with α ∈ [0,∞) and β,δ ∈ (0,∞). It is shown that this difference equation has unbounded solutions if and only if δ>β.  相似文献   

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We study the boundedness character of solutions of some third order rational difference equations and we confirm some of the conjectures posed in Camouzis et al. [“Progress report on the boundedness character of third-order rational equations”, Journal of Difference Equations and Applications 11 (2005), 1029–1035] and [“On third order rational difference equations, part 6”, Journal of Difference Equations and Applications 11 (2005), 759–777].  相似文献   

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We study the behavior of all positive solutions of the difference equation in the title, where p is a positive real parameter and the initial conditions x−2,x−1,x0 are positive real numbers. For all the values of the positive parameter p there exists a unique positive equilibrium x? which satisfies the equation
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We investigate the global character of solutions of the periodically forced Pielou's equation
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