1. Time change for flows and thermodynamic formalism
- Author
-
Godofredo Iommi and Italo Cipriano
- Subjects
Markov chain ,Applied Mathematics ,010102 general mathematics ,General Physics and Astronomy ,Statistical and Nonlinear Physics ,Dynamical Systems (math.DS) ,01 natural sciences ,010101 applied mathematics ,Time changes ,Formalism (philosophy of mathematics) ,FOS: Mathematics ,Countable set ,Statistical physics ,Mathematics - Dynamical Systems ,0101 mathematics ,Alphabet ,Mathematical Physics ,Mathematics - Abstract
This paper is devoted to study how do thermodynamic formalism quantities varies for time changes of suspension flows defined over countable Markov shifts. We prove that in general no quantity is preserved. We also make a topological description of the space of suspension flows according to certain thermodynamic quantities. For example, we show that the set of suspension flows defined over the full shift on a countable alphabet having finite entropy is open. Of independent interest might be a set of analytic tools we use to construct examples with prescribed thermodynamic behaviour.
- Published
- 2019