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The author treats the system of motion for an incompressible non-Newtonian fluids of the stress tensor described by $p-$potential function subject to slip boundary conditions in $\mathbb{R}^3_+$. Making use of the Oseen-type approximation…

偏微分方程分析 · 数学 2016-12-22 Aibin Zang

The one-dimensional compressible Navier-Stokes-Vlasov-Fokker-Planck system with density-dependent viscosity and drag force coefficients is investigated in the present paper. The existence, uniqueness, and regularity of global weak solution…

偏微分方程分析 · 数学 2023-04-07 Hai-Liang Li , Ling-Yun Shou

This investigation deals with some exact solutions of the equations governing the steady plane motions of an incompressible third grade fluid by using complex variables and complex functions. Some of the solutions admit, as particular…

数学物理 · 物理学 2008-06-16 Saifullah

This article is devoted to study stochastic lattice dynamical systems driven by a fractional Brownian motion with Hurst parameter $H\in(1/2,1)$. First of all, we investigate the existence and uniqueness of pathwise mild solutions to such…

偏微分方程分析 · 数学 2016-09-09 Hakima Bessaih , María J. Garrido-Atienza , Xiaoying Han , Björn Schmalfuß

We study the asymptotic behavior of the isentropic Navier-Stokes system driven by a multiplicative stochastic forcing in the compressible regime, where the Mach number approaches zero. Our approach is based on the recently developed concept…

偏微分方程分析 · 数学 2017-01-03 Dominic Breit , Eduard Feireisl , Martina Hofmanova

In this paper, we obtain the existence and finite-time blow-up for the solution to a system of semilinear stochastic partial differential equations driven by a combination of Brownian and fractional Brownian motions. Under suitable…

概率论 · 数学 2024-05-28 S. Sankar , Manil T. Mohan , S. Karthikeyan

We consider the compressible (barotropic) Navier-Stokes system on time-dependent domains, supplemented with slip boundary conditions. Our approach is based on penalization of the boundary behaviour, viscosity, and the pressure in the weak…

偏微分方程分析 · 数学 2015-04-01 Eduard Feireisl , Ondřej Kreml , Šárka Nečasová , Jiří Neustupa , Jan Stebel

In this paper, we consider a stochastic version of the Cahn-Hilliard-Brinkman model in a smooth two- or three-dimensional domain with dynamical boundary conditions. The system describes creeping two-phase flows and is basically a coupling…

概率论 · 数学 2026-01-13 Z. Brzeźniak , A. Ndongmo Ngana , T. Tachim Medjo

In Lagrangian coordinates, the local well-posedness of low regularity solutions is established for an ideal incompressible magnetohydrodynamic (MHD) system subject to a homogeneous background magnetic field. First, the MHD system is…

偏微分方程分析 · 数学 2026-02-05 Huali Zhang

A novel stochastic fluid model is proposed with non-ideal structure factor consistent with compressibility, and adjustable transport coefficients. This Stochastic Hard Sphere Dynamics (SHSD) algorithm is a modification of the Direct…

统计力学 · 物理学 2009-11-13 Aleksandar Donev , Berni J. Alder , Alejandro L. Garcia

We prove the existence of a unique local strong solution to the stochastic compressible Euler system with nonlinear multiplicative noise. This solution exists up to a positive stopping time and is strong in both the PDE and probabilistic…

偏微分方程分析 · 数学 2019-01-31 Dominic Breit , Prince Romeo Mensah

It is well known that upward conditioned Brownian motion is a three-dimensional Bessel process, and that a downward conditioned Bessel process is a Brownian motion. We give a simple proof for this result, which generalizes to any continuous…

概率论 · 数学 2012-10-10 Nicolas Perkowski , Johannes Ruf

We approximate stochastic processes in finite dimension by dynamical systems. We provide trajectorial estimates which are uniform with respect to the initial condition for a well chosen distance. This relies on some non-expansivity property…

概率论 · 数学 2017-01-11 Vincent Bansaye

A fluid-particle system of the inhomogeneous Navier-Stokes equations and Vlasov equation in the three dimensional space is considered in this paper. The coupling arises from the drag force in the fluid equations and the acceleration in the…

偏微分方程分析 · 数学 2013-04-18 Dehua Wang , Cheng Yu

In this paper, we prove the global existence of smooth solutions to the three-dimensional incompressible magneto-hydrodynamical system with initial data close enough to the equilibrium state, $(e_3,0).$ Compared with the the previous works…

偏微分方程分析 · 数学 2015-11-11 Hammadi Abidi , Ping Zhang

We study the magnetic two-component Hunter-Saxton system (M2HS), which was recently derived in \cite{M24} as a magnetic geodesic equation on an infinite-dimensional configuration space. While the geometric framework and the global weak flow…

偏微分方程分析 · 数学 2026-01-30 Levin Maier

Assuming an effective quadratic Hamiltonian, we derive an approximate, linear stochastic equation of motion for the density-fluctuations in liquids, composed of overdamped Brownian particles. From this approach, time dependent two point…

软凝聚态物质 · 物理学 2017-04-26 Matthias Krüger , David S. Dean

We construct planar semimartingales that include the Walsh Brownian motion as a special case, and derive Harrison-Shepp-type equations and a change-of-variable formula in the spirit of Freidlin-Sheu for these so-called "Walsh…

概率论 · 数学 2016-03-01 Tomoyuki Ichiba , Ioannis Karatzas , Vilmos Prokaj , Minghan Yan

We consider the (barotropic) Euler system describing the motion of a compressible inviscid fluid driven by a stochastic forcing. Adapting the method of convex integration we show that the initial value problem is ill-posed in the class of…

偏微分方程分析 · 数学 2020-03-25 Dominic Breit , Eduard Feireisl , Martina Hofmanova

We introduce polynomial processes taking values in an arbitrary Banach space $B$ via their infinitesimal generator $L$ and the associated martingale problem. We obtain two representations of the (conditional) moments in terms of solutions…

概率论 · 数学 2019-11-11 Christa Cuchiero , Sara Svaluto-Ferro