Complexity for Extended Dynamical Systems |
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Authors: | Claudio Bonanno Pierre Collet |
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Institution: | (1) Dipartimento di Matematica Applicata, Università di Pisa, via F. Buonarroti 1/c, 56127 Pisa, Italy;(2) Centre de Physique Théorique, école Polytechnique, CNRS UMR 7644, F-91128 Palaiseau Cedex, France |
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Abstract: | We consider dynamical systems for which the spatial extension plays an important role. For these systems, the notions of attractor,
ϵ-entropy and topological entropy per unit time and volume have been introduced previously. In this paper we use the notion
of Kolmogorov complexity to introduce, for extended dynamical systems, a notion of complexity per unit time and volume which
plays the same role as the metric entropy for classical dynamical systems. We introduce this notion as an almost sure limit
on orbits of the system. Moreover we prove a kind of variational principle for this complexity. |
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