Abstract
A new algorithm for obtaining rigorous results concerning the existence of chaotic invariant sets of dynamical systems generated by non-autonomous, time-periodic differential equations is presented. Unlike all other algorithms the presented algorithm does not require the numerical integration of the solutions and as a consequence it is insensitive to the rapid error growth in the case of long integration. The result is based on a new theoretical approach to the computation of the homology of the Poincaré map. A concrete numerical example concerning a time-periodic differential equation in the complex plane is provided.
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Communicated by Peter Kloeden.
Both authors supported by MNiSzW grant N201 037 31/3151.
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Mrozek, M., Srzednicki, R. Topological Approach to Rigorous Numerics of Chaotic Dynamical Systems with Strong Expansion of Error Bounds. Found Comput Math 10, 191–220 (2010). https://doi.org/10.1007/s10208-009-9053-5
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DOI: https://doi.org/10.1007/s10208-009-9053-5
Keywords
- Poincaré map
- Fixed point index
- Isolating block
- Symbolic dynamics
- Interval arithmetic
- Rigorous numerical algorithm