point of no return

This paper is concerned with chaos of a class of delay difference equations by employing the snap-back repeller theory.

利用返回扩张不动点理论,研究了一类时滞差分方程中的混沌存在性问题,证明了此类时滞差分方程在一定条件下在Devaney和L i-Yorke意义下混沌,并且给出了计算机模拟。