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相关论文: Multivalued Attractors and their Approximation: Ap…

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We study the problem of persistence of attractors with smooth boundary for a class of set-valued dynamical systems that naturally arise in the context of random and control dynamical systems, as well as in systems modeling the dynamical…

动力系统 · 数学 2025-11-18 K. Kourliouros , J. S. W. Lamb , M. Rasmussen , W. H. Tey , K. G. Timperi , D. Turaev

In this work, we investigate a system of interacting particles governed by a set of stochastic differential equations. Our main goal is to rigorously demonstrate that the empirical measure associated with the particle system converges…

概率论 · 数学 2025-08-12 Filippo Giovagnini , Dan Crisan

A constructive numerical approximation of the two-dimensional unsteady stochastic Navier-Stokes equations of an incompressible fluid is proposed via a pseudo-compressibility technique involving a parameter $\epsilon$. Space and time are…

数值分析 · 数学 2022-05-02 Jad Doghman

We show that the stochastic flow generated by the Stochastic Navier-Stokes equations in a 2-dimensional Poincar\'e domain has a unique random attractor. This result complements a recent result by Brze\'zniak and Li [10] who showed that the…

概率论 · 数学 2013-01-10 Z. Brzeźniak , T. Caraballo , J. A. Langa , Y. Li , G. Łukaszewicz , J. Real

The existence of a global attractor is proved for the skew-product semiflow induced by almost periodic Nicholson systems and new conditions are given for the existence of a unique almost periodic positive solution which exponentially…

动力系统 · 数学 2024-02-01 Ana M. Sanz , Víctor M. Villarragut

In this paper, we study the connectedness and compactness of the attainability set of weak solutions to the three-dimensional Navier--Stokes equations with damping. Depending on the value of the parameter \b{eta}, which controls the damping…

偏微分方程分析 · 数学 2025-07-31 Daniel Pardo , José Valero , Ángel Giménez

For a process U(t,s) acting on a one-parameter family of normed spaces, we present a notion of time-dependent attractor based only on the minimality with respect to the pullback attraction property. Such an attractor is shown to be…

动力系统 · 数学 2012-09-27 Monica Conti , Vittorino Pata , Roger Temam

In this work, we introduce a mass, energy, enstrophy and vorticity conserving (MEEVC) mixed finite element discretization for two-dimensional incompressible Navier-Stokes equations as an alternative to the original MEEVC scheme proposed in…

数值分析 · 数学 2023-07-18 Yi Zhang , Artur Palha , Marc Gerritsma , Qinghe Yao

We present a semi-discrete finite volume scheme for the local NavierStokes-Korteweg and Euler-Korteweg systems. Our scheme is applicable for equidistant Cartesian meshes in one and two space dimensions. In contrast to other works, which…

数值分析 · 数学 2026-01-14 Jan Giesselmann , Philipp Öffner , Robert Sauerborn

We prove in this paper the convergence of an semi-implicit MAC scheme for the time-dependent variable density Navier-Stokes equations.

数值分析 · 数学 2017-03-13 Thierry Gallouët , Raphaele Herbin , Jean-Claude Latché , K Mallem

We study a colocated cell centered finite volume method for the approximation of the incompressible Navier-Stokes equations posed on a 2D or 3D finite domain. The discrete unknowns are the components of the velocity and the pressures, all…

数值分析 · 数学 2008-04-30 Robert Eymard , Raphaele Herbin , Jean-Claude Latché

We consider a stochastic model which describes the motion of a 2D incompressible fluid in a unbounded domain with viscosity and memory effects. This model is different from the classical stochastic Navier-Stokes-Voigt equations due to the…

偏微分方程分析 · 数学 2022-11-08 Yadong Liu , Wenjun Liu , Xin-Guang Yang , Yasi Zheng

We consider the model of a transverse vector (e.g. magnetic) field with the most general form of the nonlinearity, known as the ${\cal A}$ model, passively advected by a strongly compressible turbulent flow, governed by the randomly stirred…

流体动力学 · 物理学 2021-12-21 Nikolai V. Antonov , Maria M. Tumakova

We study continuous 2-valued dynamical systems with discrete time (dynamics) on $\mathbb{C}$. The main question addressed is whether a 2-valued dynamics can be defined by the action of a 2-valued group. We construct a class of strongly…

群论 · 数学 2025-04-08 Konstantin M. Posadskiy

We consider a linear implicit-explicit (IMEX) time discretization of the Cahn-Hilliard equation with a source term, endowed with Dirichlet boundary conditions. For every time step small enough, we build an exponential attractor of the…

数值分析 · 数学 2023-08-24 Dieunel Dor , Morgan Pierre

Results and tools on discrete interaction networks are often concerned with Boolean variables, whereas considering more than two levels is sometimes useful. Multivalued networks can be converted to partial Boolean maps, in a way that…

离散数学 · 计算机科学 2018-12-11 Elisa Tonello

In this work, we design and analyze semi/fully-discrete virtual element approximations for the time-dependent Navier--Stokes-Cahn--Hilliard equations, modeling the dynamics of two-phase incompressible fluid flows with diffuse interfaces. A…

数值分析 · 数学 2026-01-27 Alberth Silgado , Giuseppe Vacca

Consider the two-dimensional, incompressible Navier-Stokes equations on the torus We prove that the semigroup P_t generated by the solutions to stochastic Navier-stokes equations is asymptotically strong Feller. Moreover, we also prove that…

概率论 · 数学 2020-04-23 Zhao Dong , Xuhui Peng

We consider a model for the evolution of a mixture of two incompressible and partially immiscible Newtonian fluids in two dimensional bounded domain. More precisely, we address the well-known model H consisting of the Navier-Stokes equation…

偏微分方程分析 · 数学 2013-04-04 Stefano Bosia , Stefania Gatti

This paper investigates the pathwise uniform convergence in probability of fully discrete finite-element approximations for the two-dimensional stochastic Navier-Stokes equations with multiplicative noise, subject to no-slip boundary…

数值分析 · 数学 2025-02-11 Binjie Li , Xiaoping Xie , Qin Zhou