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Date: 15-10-2021
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Date: 29-9-2021
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Date: 28-9-2021
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The best known example of an Anosov diffeomorphism. It is given by the transformation
(1) |
where and are computed mod 1. The Arnold cat mapping is non-Hamiltonian, nonanalytic, and mixing. However, it is area-preserving since the determinant is 1. The Lyapunov characteristic exponents are given by
(2) |
so
(3) |
The eigenvectors are found by plugging into the matrix equation
(4) |
For , the solution is
(5) |
where is the golden ratio, so the unstable (normalized) eigenvector is
(6) |
Similarly, for , the solution is
(7) |
so the stable (normalized) eigenvector is
(8) |
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