On some systems of difference equations

被引:127
作者
Berg, Lothar [2 ]
Stevic, Stevo [1 ]
机构
[1] Serbian Acad Sci, Math Inst, Beograd 11000, Serbia
[2] Univ Rostock, Inst Math, D-18051 Rostock, Germany
关键词
System of difference equations; Riccati equations; Asymptotics; Periodicity; Convergence; Boundedness; Symmetric systems; GLOBAL STABILITY; HIGHER-ORDER; NONTRIVIAL SOLUTIONS; ASYMPTOTICS; XN+1;
D O I
10.1016/j.amc.2011.06.050
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this note we show that the following systems of difference equations u(n+1) = v/1+v(n), v(n+1) = u(n)/1+u(n), u(n+1) = v(n)/1+u(n), v(n+1) = u(n)/1+v(n), u(n+1) = u(n)/1+v(n), v(n+1) = v(n)/1+u(n) with n is an element of N-0 and complex initial values u(0) and v(0), are solvable explicitly by means of Riccati equations, and based on the formulae for the general solutions we present the behaviour of their solutions as n -> infinity. While the result is natural for the first system, it is a bit surprising for the other two systems. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码:1713 / 1718
页数:6
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