Operator self similar stochastic processes in Rd [PDF]
AbstractOperator self similar stochastic processes taking values in a finite dimensional Euclidean space are introduced and some of their properties are studied.
V K Rohatgi
exaly +3 more sources
Self-similarity and Lamperti convergence for families of stochastic processes [PDF]
We define a new type of self-similarity for one-parameter families of stochastic processes, which applies to a number of important families of processes that are not self-similar in the conventional sense. This includes a new class of fractional Hougaard motions defined as moving averages of Hougaard Lévy process, as well as some well-known families of
Bent Jørgensen
exaly +6 more sources
Two-particle anomalous diffusion: probability density functions and self-similar stochastic processes [PDF]
Two-particle dispersion is investigated in the context of anomalous diffusion. Two different modelling approaches related to time subordination are considered and unified in the framework of self-similar stochastic processes. By assuming a single-particle fractional Brownian motion and that the two-particle correlation function decreases ...
Gianni Pagnini, Francesco Mainardi
exaly +9 more sources
A class of self-similar stochastic processes with stationary increments to model anomalous diffusion in physics [PDF]
In this paper we present a general mathematical construction that allows us to define a parametric class of $H$-sssi stochastic processes (self-similar with stationary increments), which have marginal probability density function that evolves in time according to a partial integro-differential equation of fractional type.
Francesco Mainardi
exaly +4 more sources
Noncentral Limit Theorem for the Cubic Variation of a Class of Self-Similar Stochastic Processes [PDF]
By using multiple Wiener–Ito stochastic integrals, we study the cubic variation of a class of self-similar stochastic processes with stationary increments (the Rosenblatt process with self-similarity order $H\in (\frac{1}{2}, 1)$). This study is motivated by statistical purposes.
Khalifa Es-Sebaiy
exaly +2 more sources
Cluster Analysis on Locally Asymptotically Self-Similar Processes with Known Number of Clusters
We conduct cluster analysis of a class of locally asymptotically self-similar stochastic processes with finite covariance structures, which includes Brownian motion, fractional Brownian motion, and multifractional Brownian motion as paradigmatic examples.
Nan Rao, Qidi Peng, Ran Zhao
doaj +1 more source
Review article: Scaling, dynamical regimes, and stratification. How long does weather last? How big is a cloud? [PDF]
Until the 1980s, scaling notions were restricted to self-similar homogeneous special cases. I review developments over the last decades, especially in multifractals and generalized scale invariance (GSI).
S. Lovejoy
doaj +1 more source
Elliptic Self Similar Stochastic Processes [PDF]
Let M be a random measure and L be an elliptic pseudo-differential operator on \mathbb{R}^d
Benassi, Albert, Roux, Daniel
openaire +3 more sources
A Drive towards Thermodynamic Efficiency for Dissipative Structures in Chemical Reaction Networks
Dissipative accounts of structure formation show that the self-organisation of complex structures is thermodynamically favoured, whenever these structures dissipate free energy that could not be accessed otherwise.
Kai Ueltzhöffer +3 more
doaj +1 more source
Can power-law scaling and neuronal avalanches arise from stochastic dynamics? [PDF]
The presence of self-organized criticality in biology is often evidenced by a power-law scaling of event size distributions, which can be measured by linear regression on logarithmic axes. We show here that such a procedure does not necessarily mean that
Jonathan Touboul, Alain Destexhe
doaj +1 more source

