Results 21 to 30 of about 181,747 (177)

Stationarity of SLE

open access: yes, 2009
A new method to study a stopped hull of SLE(kappa,rho) is presented. In this approach, the law of the conformal map associated to the hull is invariant under a SLE induced flow.
Antti Kemppainen   +11 more
core   +1 more source

Asymptotic Analysis of Poverty Dynamics via Feller Semigroups

open access: yesMathematics
Poverty is a multifaceted phenomenon impacting millions globally, defined by a deficiency in both material and immaterial resources, which consequently restricts access to satisfactory living conditions. Comprehensive poverty analysis can be accomplished
Lahcen Boulaasair   +2 more
doaj   +1 more source

Wavelet Density and Regression Estimators for Functional Stationary and Ergodic Data: Discrete Time

open access: yesMathematics, 2022
The nonparametric estimation of density and regression function based on functional stationary processes using wavelet bases for Hilbert spaces of functions is investigated in this paper. The mean integrated square error over adapted decomposition spaces
Sultana DIDI   +2 more
doaj   +1 more source

Quantifying Non-Stationarity with Information Theory

open access: yesEntropy, 2021
We introduce an index based on information theory to quantify the stationarity of a stochastic process. The index compares on the one hand the information contained in the increment at the time scale τ of the process at time t with, on the other hand ...
Carlos Granero-Belinchón   +2 more
doaj   +1 more source

Graph Variogram: A novel tool to measure spatial stationarity

open access: yes, 2018
Irregularly sampling a spatially stationary random field does not yield a graph stationary signal in general. Based on this observation, we build a definition of graph stationarity based on intrinsic stationarity, a less restrictive definition of ...
Girault, Benjamin   +2 more
core   +1 more source

Cautious Gait during Navigational Tasks in People with Hemiparesis: An Observational Study

open access: yesSensors
Locomotor and balance disorders are major limitations for subjects with hemiparesis. The Timed Up and Go (TUG) test is a complex navigational task involving oriented walking and obstacle circumvention. We hypothesized that subjects with hemiparesis adopt
Albane Le Roy   +4 more
doaj   +1 more source

Wavelet Density and Regression Estimators for Continuous Time Functional Stationary and Ergodic Processes

open access: yesMathematics, 2022
In this study, we look at the wavelet basis for the nonparametric estimation of density and regression functions for continuous functional stationary processes in Hilbert space. The mean integrated squared error for a small subset is established.
Sultana Didi, Salim Bouzebda
doaj   +1 more source

Sum of exit times in series of metastable states in probabilistic cellular automata [PDF]

open access: yes, 2016
Reversible Probabilistic Cellular Automata are a special class of automata whose stationary behavior is described by Gibbs--like measures. For those models the dynamics can be trapped for a very long time in states which are very different from the ...
A Bovier   +12 more
core   +1 more source

On singular stationarity I (mutual stationarity and ideal-based methods) [PDF]

open access: yesAdvances in Mathematics, 2019
We study several ideal-based constructions in the context of singular stationarity. By combining methods of strong ideals, supercompact embeddings, and Prikry-type posets, we obtain three consistency results concerning mutually stationary sets, and answer a question of Foreman and Magidor concerning stationary sequences on the first uncountable ...
openaire   +2 more sources

Semiparametric stationarity and fractional unit roots tests based on data-driven multidimensional increment ratio statistics

open access: yes, 2016
In this paper, we show that the central limit theorem (CLT) satisfied by the data-driven Multidimensional Increment Ratio (MIR) estimator of the memory parameter d established in Bardet and Dola (2012) for d $\in$ (--0.5, 0.5) can be extended to a ...
Bardet, Jean-Marc, Dola, Béchir
core   +2 more sources

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