Global vector field reconstruction for dynamical systems
1999
When a dynamical system is studied, one of the most interesting goals is to obtain a set of differential equations which provides a model of its behavior. Indeed, it has been pointed out that the knowledge of a global model which captures all the underlying dynamics provides a significant step in the understanding of physical processes. In the case of experiments, the aim is therefore to obtain a set of ordinary differential equations which generates a behavior equivalent to the experimental one starting from a scalar time series given for an observable. The method, the so-called global vector field reconstruction, is described as well as exemplified on experimental cases arising from chemistry, namely a copper electrodissolution and a Belousov-Zhabotinskii reaction. Numerical examples for taking into account a control parameter or for modelling a driven system are also discussed.
Keywords:
- Examples of differential equations
- Dynamical systems theory
- Vector field reconstruction
- Global analysis
- Projected dynamical system
- Mathematical optimization
- Separable partial differential equation
- Random dynamical system
- Mathematics
- Delay differential equation
- Distributed parameter system
- Numerical partial differential equations
- Statistical physics
- Differential algebraic equation
- Mathematical analysis
- Correction
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