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This paper deals with the well posedness of an integrodifferential equation that describes a vortex filament associated to a 3D turbulent fluid flow. This equation is driven by a fractional Brownian motion of Hurst parameter H>1/2. We prove…

概率论 · 数学 2011-03-18 Hakima Bessaih , Chandana Wijeratne

In this paper, we study a class of one-dimensional stochastic differential equations driven by fractional Brownian motion with Hurst parameter $H>\ff 1 2$. The drift term of the equation is locally Lipschitz and unbounded in the…

概率论 · 数学 2019-01-01 Shao-Qin Zhang , Chenggui Yuan

In this paper, we consider the extended stochastic Navier-Stokes equations with Caputo derivative driven by fractional Brownian motion. We firstly derive the pathwise spatial and temporal regularity of the generalized Ornstein-Uhlenbeck…

数值分析 · 数学 2017-09-18 Guang-an Zou , Guangying Lv , Jiang-Lun Wu

In this paper, we study linear backward stochastic differential equations driven by a class of centered Gaussian non-martingales, including fractional Brownian motion with Hurst parameter $H\in (0,1)\setminus \{\frac12\}$. We show that, for…

概率论 · 数学 2016-01-20 Christian Bender , Lauri Viitasaari

We demonstrate that stochastic differential equations (SDEs) driven by fractional Brownian motion with Hurst parameter H > 1/2 have similar ergodic properties as SDEs driven by standard Brownian motion. The focus in this article is on…

概率论 · 数学 2010-05-14 Martin Hairer , Natesh S. Pillai

In this article, we consider fractional stochastic wave equations on $\mathbb R$ driven by a multiplicative Gaussian noise which is white/colored in time and has the covariance of a fractional Brownian motion with Hurst parameter…

概率论 · 数学 2019-04-23 Jian Song , Xiaoming Song , Fangjun Xu

Strongly consistent and asymptotically normal estimators of the Hurst index and volatility parameters of solutions of stochastic differential equations with polynomial drift are proposed. The estimators are based on discrete observations of…

概率论 · 数学 2015-05-19 Kestutis Kubilius , Viktor Skorniakov , Dmitrij Melichov

We consider stochastic differential equation involving pathwise integral with respect to fractional Brownian motion. The estimates for the Hurst parameter are constructed according to first- and second-order quadratic variations of observed…

概率论 · 数学 2012-06-28 K. Kubilius , Y. Mishura

We consider slow / fast systems where the slow system is driven by fractional Brownian motion with Hurst parameter $H>{1\over 2}$. We show that unlike in the case $H={1\over 2}$, convergence to the averaged solution takes place in…

概率论 · 数学 2023-03-07 Martin Hairer , Xue-Mei Li

In this paper we obtain Gaussian-type lower bounds for the density of solutions to stochastic differential equations (SDEs) driven by a fractional Brownian motion with Hurst parameter $H$. In the one-dimensional case with additive noise,…

概率论 · 数学 2016-08-11 M. Besalú , A. Kohatsu-Higa , S. Tindel

We study the nonparametric Nadaraya-Watson estimator of the drift function for ergodic stochastic processes driven by fractional Brownian motion of Hurst parameter H > 1/2. The estimator is based on the discretely observed stochastic…

统计理论 · 数学 2022-05-03 Han Yuecai , Zhang Dingwen

Uncertainties are abundant in complex systems. Mathematical models for these systems thus contain random effects or noises. The models are often in the form of stochastic differential equations, with some parameters to be determined by…

数值分析 · 数学 2015-03-13 Jiarui Yang , Jinqiao Duan

In this paper, we derive the exact rate of convergence of some approximation schemes associated to scalar stochastic differential equations driven by a fractional Brownian motion with Hurst index H.

概率论 · 数学 2007-05-23 Andreas Neuenkirch , Ivan Nourdin

In this paper we study the existence of a unique solution to a general class of Young delay differential equations driven by a H\"older continuous function with parameter greater that 1/2 via the Young integration setting. Then some…

概率论 · 数学 2009-12-14 Jorge A. Leon , Samy Tindel

By using Malliavin calculus, Bismut derivative formulae are established for a class of stochastic (functional) differential equations driven by fractional Brownian motions. As applications, Harnack type inequalities and strong Feller…

概率论 · 数学 2014-07-29 Xiliang Fan

Small noise problems are quite important for all types of stochastic differential equations. In this paper we focus on rough differential equations driven by scaled fractional Brownian rough path with Hurst parameter H between 1/4 and 1/2.…

概率论 · 数学 2024-03-27 Yuzuru Inahama , Yong Xu , Xiaoyu Yang

The paper is concerned with a mixed stochastic delay differential equation involving both a Wiener process and a $\gamma$-H\"older continuous process with $\gamma>1/2$ (e.g. a fractional Brownian motion with Hurst parameter greater than…

概率论 · 数学 2014-07-22 Yuliya Mishura , Taras Shalaiko , Georgiy Shevchenko

We study parameter estimation problem for diagonalizable stochastic partial differential equations driven by a multiplicative fractional noise with any Hurst parameter $H\in(0,1)$. Two classes of estimators are investigated: traditional…

概率论 · 数学 2010-05-27 Igor Cialenco

We consider stochastic differential equation $$ d X_t=b(X_t) dt +d W_t^H, $$ where the drift $b$ is either a measure or an integrable function, and $W^H$ is a $d$-dimensional fractional Brownian motion with Hurst parameter $H\in(0,1)$,…

概率论 · 数学 2025-10-22 Oleg Butkovsky , Khoa Lê , Leonid Mytnik

In this paper we present a new method for the construction of strong solutions of SDE's with merely integrable drift coefficients driven by a multidimensional fractional Brownian motion with Hurst parameter H < 1/2. Furthermore, we prove…

概率论 · 数学 2018-05-30 David Baños , Torstein Nilssen , Frank Proske