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Fractional Brownian motion is a non-Markovian Gaussian process indexed by the Hurst exponent $H\in [0,1]$, generalising standard Brownian motion to account for anomalous diffusion. Functionals of this process are important for practical…

统计力学 · 物理学 2021-11-24 Tridib Sadhu , Kay Jörg Wiese

Sticky Brownian motion on the real line can be obtained as a weak solution of a system of stochastic differential equations. We find the conditional distribution of the process given the driving Brownian motion, both at an independent…

概率论 · 数学 2020-09-08 Bugra Can , Mine Caglar

In this paper we study the controllability results of impulsive neutral stochastic functional differential equations with infinite delay driven by fractional Brownian motion in a real separable Hilbert space. The controllability results are…

概率论 · 数学 2016-02-19 El Hassan Lakhel

Motivated by subdiffusive motion of bio-molecules observed in living cells we study the stochastic properties of a non-Brownian particle whose motion is governed by either fractional Brownian motion or the fractional Langevin equation and…

统计力学 · 物理学 2016-09-08 Jae-Hyung Jeon , Ralf Metzler

We study overdamped stochastic dynamics confined by hard reflecting boundaries and show that the combination of boundary geometry and an anisotropic diffusion tensor generically generates directed motion. At the level of individual…

统计力学 · 物理学 2026-01-14 Meitar Goldfarb , Stanislav Burov

We study a class of multivariate tempered stable distributions and introduce the associated class of tempered stable Sato subordinators. These Sato subordinators are used to build additive inhomogeneous processes by subordination of a…

概率论 · 数学 2021-09-03 Patrizia Semeraro

We give a Dirichlet form approach for the construction of a distorted Brownian motion in $E:=[0,\infty)^n$, $n\in\mathbb{N}$, where the behavior on the boundary is determined by the competing effects of reflection from and pinning at the…

概率论 · 数学 2014-09-26 Torben Fattler , Martin Grothaus , Robert Voßhall

Functionals of Brownian/non-Brownian motions have diverse applications and attracted a lot of interest of scientists. This paper focuses on deriving the forward and backward fractional Feynman-Kac equations describing the distribution of…

数据分析、统计与概率 · 物理学 2016-04-06 Xiaochao Wu , Weihua Deng , Eli Barkai

This paper deals with the identification of the multivariate fractional Brownian motion, a recently developed extension of the fractional Brownian motion to the multivariate case. This process is a $p$-multivariate self-similar Gaussian…

统计理论 · 数学 2011-11-16 Pierre-Olivier Amblard , Jean-François Coeurjolly

For classical Brownian systems driven out of equilibrium we derive inhomogeneous two-time correlation functions from functional differentiation of the one-body density and current with respect to external fields. In order to allow for…

软凝聚态物质 · 物理学 2014-01-21 Joseph M. Brader , Matthias Schmidt

A free non-relativistic particle moving in two dimensions on a half-plane can be described by self-adjoint Hamiltonians characterized by boundary conditions imposed on the systems. The most general boundary condition is parameterized in…

高能物理 - 理论 · 物理学 2009-10-22 Michel Carreau

Recently, many interesting features of the hydrodynamically coupled motions of the Brownian particles in a viscous fluid have been reported which are impossible for the uncoupled motions of the similar particles. However, it is expected…

软凝聚态物质 · 物理学 2018-05-17 Shuvojit Paul

Confined motions in complex environments are ubiquitous in microbiology. These situations invariably involve the intricate coupling between fluid flow, soft boundaries, surface forces and fluctuations. In the present study, such a coupling…

软凝聚态物质 · 物理学 2024-05-24 Nicolas Fares , Maxime Lavaud , Zaicheng Zhang , Aditya Jha , Yacine Amarouchene , Thomas Salez

A time-changed mixed fractional Brownian motion is an iterated process constructed as the superposition of mixed fractional Brownian motion and other process. In this paper we consider mixed fractional Brownian motion of parameters a, b and…

概率论 · 数学 2021-02-23 Ezzedine Mliki , Shaykhah Alajmi

Generalizations of tempered fractional Brownian from single index to two indices and variable index or tempered multifractional Brownian motion are studied. Tempered fractional Brownian motion and tempered multifractional Brownian motion…

概率论 · 数学 2021-04-13 S. C. Lim , Chai Hok Eab

A time-changed fractional mixed fractional Brownian motion by inverse alpha stable subordinator with index alpha in (0, 1) is an iterated process L constructed as the superposition of fractional mixed fractional Brownian motion N(a, b) and…

概率论 · 数学 2023-01-25 Ezzedine Mliki

In this note we consider generalized diffusion equations in which the diffusivity coefficient is not necessarily constant in time, but instead it solves a nonlinear fractional differential equation involving fractional Riemann-Liouville…

概率论 · 数学 2022-09-21 Roberto Garra , Elena Issoglio , Giorgio S. Taverna

We study interacting systems of linear Brownian motions whose drift vector at every time point is determined by the relative ranks of the coordinate processes at that time. Our main objective has been to study the long range behavior of the…

概率论 · 数学 2008-01-22 Soumik Pal , Jim Pitman

We study some functional inequalities satisfied by the distribution of the solution of a stochastic differential equation driven by fractional Brownian motions. Such functional inequalities are obtained through new integration by parts…

概率论 · 数学 2011-02-23 Fabrice Baudoin , Cheng Ouyang

In this paper, we study small-time asymptotic behaviors for a class of distribution dependent stochastic differential equations driven by fractional Brownian motions with Hurst parameter $H\in(1/2,1)$ and magnitude $\ep^H$. By building up a…

概率论 · 数学 2022-07-05 Xiliang Fan , Ting Yu , Chenggui Yuan