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Boundedness and Oscillation of Third Order Neutral Differential Equations with Deviating Arguments
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作者 elmetwally m. elabbasy magdy Y. Barsoum Osama moaaz 《Journal of Applied Mathematics and Physics》 2015年第11期1367-1375,共9页
we consider the third-order neutral functional differential equations with deviating arguments. A new theorem is presented that improves a number of results reported in the literature. Examples are included to illustr... we consider the third-order neutral functional differential equations with deviating arguments. A new theorem is presented that improves a number of results reported in the literature. Examples are included to illustrate new results. 展开更多
关键词 OSCILLATION THIRD Order NEUTRAL Delay Differential Equations
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Oscillation Properties of Third Order Neutral Delay Differential Equations
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作者 elmetwally m. elabbasy Osama moaaz Ebtesam Sh. Almehabresh 《Applied Mathematics》 2016年第15期1780-1788,共9页
Oscillation criteria are established for third-order neutral delay differential equations with deviating arguments. These criteria extend and generalize those results in the literature. Moreover, some illustrating exa... Oscillation criteria are established for third-order neutral delay differential equations with deviating arguments. These criteria extend and generalize those results in the literature. Moreover, some illustrating examples are also provided to show the importance of our results. 展开更多
关键词 OSCILLATION Third Order Neutral Delay Differential Equations
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On the Nonlinear Difference Equation
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作者 elmetwally m. elabbasy Abdulmuhaemn A. El-Biaty 《Journal of Applied Mathematics and Physics》 2016年第1期100-109,共10页
In this paper, we investigate some qualitative behavior of the solutions of the difference equation where the coefficients a, b and c<sub>i</sub> are positive real numbers, and where the initial conditions... In this paper, we investigate some qualitative behavior of the solutions of the difference equation where the coefficients a, b and c<sub>i</sub> are positive real numbers, and where the initial conditions are arbitrary positive real numbers. 展开更多
关键词 Difference Equation STABILITY PERIODICITY BOUNDEDNESS Global Stability
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Investigation of the Class of the Rational Difference Equations
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作者 elmetwally m. elabbasy Osama moaaz Shaimaa Alsaeed 《Applied Mathematics》 2017年第10期1464-1472,共9页
This paper is concerned with asymptotic behavior of the solution of a new class of rational Difference Equations. We consider the local and global stability of the solution. Moreover we investigate the new periodic ch... This paper is concerned with asymptotic behavior of the solution of a new class of rational Difference Equations. We consider the local and global stability of the solution. Moreover we investigate the new periodic character (periodic two) of solutions of these equations. Finally, we give some interesting counter examples in order to verify our strong results. 展开更多
关键词 DIFFERENCE EQUATION STABILITY PERIODICITY BOUNDEDNESS
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Dynamics of a Rational Difference Equation
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作者 elmetwally m. elabbasy Elsayed m. ELSAYED 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2009年第2期187-198,共12页
The authors investigate the global behavior of the solutions of the difference equation xn+1=axn-1xn-k/bxn-p+cxn-q,n=0,1,…where the initial conditions x-r, x-r+1, x-r+2,… , x0 are arbitrary positive real numbers... The authors investigate the global behavior of the solutions of the difference equation xn+1=axn-1xn-k/bxn-p+cxn-q,n=0,1,…where the initial conditions x-r, x-r+1, x-r+2,… , x0 are arbitrary positive real numbers, r = max{l, k,p, q) is a nonnegative integer and a, b, c are positive constants. Some special cases of this equation are also studied in this paper. 展开更多
关键词 STABILITY Periodic solutions Difference equations
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