Exponential decay of correlations for a real-valued dynamical system   generated by a k dimensional system
  We study the real, bounded-variables process (X_n) defined by a k-term recurrence relation X_{n+k} ={\phi}(X_n, ... , X_{n+k-1}). We prove the decay of correlations, mainly under purely analytic hypotheses concerning the function {\phi} and its partial derivatives. 
Lisette Jager, Jules Maes, Alain Ninet
math.DS