Publications [#284226] of Amilcare Porporato
Papers Published
- Racca, E; Porporato, A, Langevin equations from time series.,
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, vol. 71 no. 2 Pt 2
(February, 2005),
pp. 027101, ISSN 1539-3755 [PhysRevE.71.027101], [doi]
(last updated on 2023/08/08)Abstract:
We discuss the link between the approach to obtain the drift and diffusion of one-dimensional Langevin equations from time series, and Pope and Ching's relationship for stationary signals. The two approaches are based on different interpretations of conditional averages of the time derivatives of the time series at given levels. The analysis provides a useful indication for the correct application of Pope and Ching's relationship to obtain stochastic differential equations from time series and shows its validity, in a generalized sense, for nondifferentiable processes originating from Langevin equations.Keywords:
Ionic conduction;Potassium;Ions;Electric charge;Binding energy;Reduction;Concentration (process);Physiological models;Thermal conductivity;