Hyperbolic toral automorphism with matrix [[2,1],[1,1]] of determinant 1. Ergodic, mixing, Bernoulli, with positive Lyapunov exponent log((3+√5)/2) = 2 log φ. Canonical example of a chaotic area-preserving map.
Hyperbolic toral automorphism with matrix [[2,1],[1,1]] of determinant 1. Ergodic, mixing, Bernoulli, with positive Lyapunov exponent log((3+√5)/2) = 2 log φ. Canonical example of a chaotic area-preserving map.