Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Wouters, Jeroen A."'
The climate system is a complex, chaotic system with many degrees of freedom and variability on a vast range of temporal and spatial scales. Attaining a deeper level of understanding of its dynamical processes is a scientific challenge of great urgen
Externí odkaz:
http://arxiv.org/abs/2106.13546
Autor:
Wouters, Jeroen
In this paper we examine the deviations from Gaussianity for two types of random variable converging to a normal distribution, namely sums of random variables generated by a deterministic discrete time map and a linearly damped variable driven by a d
Externí odkaz:
http://arxiv.org/abs/1909.04578
We study temporally persistent and spatially extended extreme events of temperature anomalies, i.e. heat waves and cold spells, using large deviation theory. To this end, we consider a simplified yet Earth-like general circulation model of the atmosp
Externí odkaz:
http://arxiv.org/abs/1807.08261
Autor:
Wouters, Jeroen, Gottwald, Georg A.
We propose a stochastic model reduction strategy for deterministic and stochastic slow-fast systems with finite time-scale separation. The stochastic model reduction relaxes the assumption of infinite time-scale separation of classical homogenization
Externí odkaz:
http://arxiv.org/abs/1804.09537
Studying extreme events and how they evolve in a changing climate is one of the most important current scientific challenges. Starting from complex climate models, a key difficulty is to be able to run long enough simulations in order to observe thos
Externí odkaz:
http://arxiv.org/abs/1709.03757
Autor:
Wouters, Jeroen, Gottwald, Georg A.
We derive Edgeworth expansions that describe corrections to the Gaussian limiting behaviour of slow-fast systems. The Edgeworth expansion is achieved using a semi-group formalism for the transfer operator, where a Duhamel-Dyson series is used to asym
Externí odkaz:
http://arxiv.org/abs/1708.06984
Autor:
Lucarini, Valerio, Wouters, Jeroen
Predicting the response of a system to perturbations is a key challenge in mathematical and natural sciences. Under suitable conditions on the nature of the system, of the perturbation, and of the observables of interest, response theories allow to c
Externí odkaz:
http://arxiv.org/abs/1702.02666
We discuss applications of a recently developed method for model reduction based on linear response theory of weakly coupled dynamical systems. We apply the weak coupling method to simple stochastic differential equations with slow and fast degrees o
Externí odkaz:
http://arxiv.org/abs/1606.08123
Using a sensitive statistical test we determine whether or not one can detect the breakdown of linear response given observations of deterministic dynamical systems. A goodness-of-fit statistics is developed for a linear statistical model of the obse
Externí odkaz:
http://arxiv.org/abs/1601.03112
Autor:
Wouters, Jeroen, Bouchet, Freddy
In this paper we address the use of rare event computation techniques to estimate small over-threshold probabilities of observables in determin-istic dynamical systems. We demonstrate that the genealogical particle analysis algorithms can be successf
Externí odkaz:
http://arxiv.org/abs/1511.02703