scholarly journals On the Dynamics of the Recursive Sequence

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Mehmet Gümüş ◽  
Özkan Öcalan ◽  
Nilüfer B. Felah
Keyword(s):  
Periodic Solution ◽  
Difference Equation ◽  
Periodic Solutions ◽  
Positive Solutions ◽  
Initial Conditions ◽  
Recursive Sequence ◽  
Boundedness Character ◽  
The Difference

We investigate the boundedness character, the oscillatory, and the periodic character of positive solutions of the difference equation , where , , and the initial conditions are arbitrary positive numbers. We investigate the boundedness character for . Also, we investigate the existence of a prime two periodic solution for is odd. Moreover, when is even, we prove that there are no prime two periodic solutions of the equation above.

scholarly journals On the Rational Recursive Sequence

2008 ◽  
Vol 2008 ◽  
pp. 1-15 ◽  
Author(s):  
E. M. E. Zayed ◽  
A. B. Shamardan ◽  
T. A. Nofal
Keyword(s):  
Difference Equation ◽  
Global Stability ◽  
Global Attractor ◽  
Positive Solutions ◽  
Initial Conditions ◽  
Positive Equilibrium ◽  
Real Numbers ◽  
Recursive Sequence ◽  
Boundedness Character ◽  
The Difference

We study the global stability, the periodic character, and the boundedness character of the positive solutions of the difference equation , , in the two cases: (i) ; (ii) , where the coefficients and, and the initial conditions are real numbers. We show that the positive equilibrium of this equation is a global attractor with a basin that depends on certain conditions posed on the coefficients of this equation.

scholarly journals On the Rational Recursive Sequencexn+1=(A+∑i=0kαixn−i)/(B+∑i=0kβixn−i)

2007 ◽  
Vol 2007 ◽  
pp. 1-12 ◽  
Author(s):  
E. M. E. Zayed ◽  
M. A. El-Moneam
Keyword(s):  
Positive Integer ◽  
Difference Equation ◽  
Global Stability ◽  
Positive Solutions ◽  
Initial Conditions ◽  
Integer Number ◽  
Real Numbers ◽  
Positive Real ◽  
Boundedness Character ◽  
The Difference

The main objective of this paper is to study the boundedness character, the periodic character, the convergence, and the global stability of the positive solutions of the difference equationxn+1=(A+∑i=0kαixn−i)/(B+∑i=0kβixn−i), n=0,1,2,…,whereA, B, αi, βiand the initial conditionsx−k,...,x−1,x0are arbitrary positive real numbers, whilekis a positive integer number.

scholarly journals Global Behavior of the Difference Equationxn+1=xn-1g(xn)

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Hongjian Xi ◽  
Taixiang Sun ◽  
Bin Qin ◽  
Hui Wu
Keyword(s):  
Continuous Function ◽  
Difference Equation ◽  
Positive Solution ◽  
Positive Solutions ◽  
Initial Conditions ◽  
Global Behavior ◽  
Initial Values ◽  
The Difference ◽  
Surjective Function

We consider the following difference equationxn+1=xn-1g(xn),n=0,1,…,where initial valuesx-1,x0∈[0,+∞)andg:[0,+∞)→(0,1]is a strictly decreasing continuous surjective function. We show the following. (1) Every positive solution of this equation converges toa,0,a,0,…,or0,a,0,a,…for somea∈[0,+∞). (2) Assumea∈(0,+∞). Then the set of initial conditions(x-1,x0)∈(0,+∞)×(0,+∞)such that the positive solutions of this equation converge toa,0,a,0,…,or0,a,0,a,…is a unique strictly increasing continuous function or an empty set.

scholarly journals On the Recursive Sequencexn+1=A+xnp/xn−1p

2007 ◽  
Vol 2007 ◽  
pp. 1-9 ◽  
Author(s):  
Stevo Stevic
Keyword(s):  
Difference Equation ◽  
Positive Solutions ◽  
Global Attractivity ◽  
Complete Picture ◽  
Boundedness Character ◽  
The Difference

This paper studies the boundedness, global attractivity, and periodicity of the positive solutions of the difference equationxn+1=A+xnp/xn−1p,n∈ℕ0, withp,A∈(0,∞). The main results give a complete picture regarding the boundedness character of the positive solutions of the equation.

On the global attractivity and the solution of recursive sequence

2010 ◽  
Vol 47 (3) ◽  
pp. 401-418 ◽  
Author(s):  
Elsayed Elsayed
Keyword(s):  
Difference Equation ◽  
Global Attractivity ◽  
Initial Conditions ◽  
Real Numbers ◽  
Positive Real ◽  
Special Cases ◽  
Recursive Sequence ◽  
The Difference

In this paper we study the behavior of the difference equation \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage{bbm} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $$x_{n + 1} = ax_{n - 2} + \frac{{bx_n x_{n - 2} }}{{cx_n + dx_{n - 3} }},n = 0,1,...$$ \end{document} where the initial conditions x−3 , x−2 , x−1 , x0 are arbitrary positive real numbers and a, b, c, d are positive constants. Also, we give the solution of some special cases of this equation.

scholarly journals Some Discussions on the Difference Equationxn+1=α+(xn-1m/xnk)

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Awad A. Bakery
Keyword(s):  
Periodic Solution ◽  
Difference Equation ◽  
Equilibrium Point ◽  
Positive Solution ◽  
Initial Conditions ◽  
Sufficient Conditions ◽  
Asymptotically Stable ◽  
Globally Asymptotically Stable ◽  
Numerical Examples ◽  
The Difference

We give in this work the sufficient conditions on the positive solutions of the difference equationxn+1=α+(xn-1m/xnk),  n=0,1,…, whereα,k, andm∈(0,∞)under positive initial conditionsx-1,  x0to be bounded,α-convergent, the equilibrium point to be globally asymptotically stable and that every positive solution converges to a prime two-periodic solution. Our results coincide with that known for the casesm=k=1of Amleh et al. (1999) andm=1of Hamza and Morsy (2009). We offer improving conditions in the case ofm=1of Gümüs and Öcalan (2012) and explain our results by some numerical examples with figures.

scholarly journals On the Recursive Sequencexn=A+xn−kp/xn−1r

2009 ◽  
Vol 2009 ◽  
pp. 1-8 ◽  
Author(s):  
Fangkuan Sun ◽  
Xiaofan Yang ◽  
Chunming Zhang
Keyword(s):  
Difference Equation ◽  
Dynamic Behavior ◽  
Positive Solutions ◽  
Initial Conditions ◽  
Real Numbers ◽  
Positive Real ◽  
The Difference ◽  
The Stability

This paper studies the dynamic behavior of the positive solutions to the difference equationxn=A+xn−kp/xn−1r,n=1,2,…, whereA,p, andrare positive real numbers, and the initial conditions are arbitrary positive numbers. We establish some results regarding the stability and oscillation character of this equation forp∈(0,1).

scholarly journals The Periodicity of Positive Solutions of the Nonlinear Difference Equationxn+1=α+(xn−kp)/(xnq)

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Mehmet Gümüş
Keyword(s):  
Difference Equation ◽  
Positive Solutions ◽  
Initial Conditions ◽  
The Difference

We give a remark about the periodic character of positive solutions of the difference equationxn+1=α+xn−kp/xnq,n=0,1,…, wherek>1is an odd integer,α,p, q∈(0,∞),and the initial conditionsx−k,…,x0are arbitrary positive numbers.

scholarly journals On the rational recursive sequence

2009 ◽  
Vol 43 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Anna Andruch-Sobiło ◽  
Małgorzata Migda
Keyword(s):  
Difference Equation ◽  
Explicit Formula ◽  
Initial Conditions ◽  
Recursive Sequence ◽  
The Difference

Abstract In this paper we consider the difference equation (E) with positive parameters and nonnegative initial conditions. We use the explicit formula for the solutions of equation (E) in investigating their behavior.

scholarly journals On the Recursive Sequencexn+1=A+xnp/xn−1r

2007 ◽  
Vol 2007 ◽  
pp. 1-9 ◽  
Author(s):  
Stevo Stevic
Keyword(s):  
Difference Equation ◽  
Positive Solutions ◽  
Analogous Result ◽  
Real Numbers ◽  
Positive Real ◽  
Unbounded Solutions ◽  
Boundedness Character ◽  
The Difference

The paper considers the boundedness character of positive solutions of the difference equationxn+1=A+xnp/xn−1r,n∈ℕ0, whereA,p, andrare positive real numbers. It is shown that (a) Ifp2≥4r>4, orp≥1+r,r≤1, then this equation has positive unbounded solutions; (b) ifp2<4r, or2r≤p<1+r,r∈(0,1), then all positive solutions of the equation are bounded. Also, an analogous result is proved regarding positive solutions of the max type difference equationxn+1=max{A,xnp/xn−1r}, whereA,p,q∈(0,∞).

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