Rational dynamical zeta functions for birational transformations

Details Rational dynamical zeta functions for birational transformations Rational dynamical zeta functions for birational transformations

1998-07-09

arxiv.org/abs/chao-dyn/9807014v1

Nonlinear Sciences

Chaotic Dynamics

1 latex file + 3 PostScript files (= 3 figures)

Scientific paper

We propose a conjecture for the exact expression of the dynamical zeta function for a family of birational transformations of two variables, depending on two parameters. This conjectured function is a simple rational expression with integer coefficients. This yields an algebraic value for the topological entropy. Furthermore the generating function for the Arnold complexity is also conjectured to be a rational expression with integer coefficients with the same singularities as for the dynamical zeta function. This leads, at least in this example, to an equality between the Arnold complexity and the exponential of the topological entropy. We also give a semi-numerical method to effectively compute the Arnold complexity.

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