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相关论文: Remarks on Oldroyd-B and Related Complex Fluids Mo…

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This paper is dedicated to the study of the inviscid liquid-gas two-phase flow model in $\mathbb{R}^d\ (d\geq1)$. We establish the global existence of strong solutions to this system with small initial data in hybrid Besov spaces based on…

偏微分方程分析 · 数学 2024-04-09 Zhigang Wu , Mengqian Liu , Juanzi Cai

In this article, we investigate the large-time behavior of small solutions to a system of one-dimensional cubic nonlinear Schr\"odinger equations with two components. In previous studies, a structural condition on the nonlinearity has been…

偏微分方程分析 · 数学 2024-12-03 Satoshi Masaki

This paper is concerned with the stability and large-time behavior for 3D magneto-micropolar equations with horizontal dissipation. The global well-posedness of the aforementioned system is established, with the initial data and its…

偏微分方程分析 · 数学 2025-09-25 Peng Lu , Yuanyuan Qiao

We consider the problem of existence and uniqueness of strong a.e. solutions $u: \mathbb{R}^n \longrightarrow \mathbb{R}^N$ to the fully nonlinear PDE system \[\label{1} \tag{1} F(\cdot,D^2u ) \,=\, f, \ \ \text{ a.e. on }\mathbb{R}^n, \]…

偏微分方程分析 · 数学 2016-03-01 Nikos Katzourakis

We study a model for rate-dependent gradient plasticity at finite strain based on the multiplicative decomposition of the strain tensor, and investigate the existence of global-in-time solutions to the related PDE system. We reveal its…

偏微分方程分析 · 数学 2018-01-17 Alexander Mielke , Riccarda Rossi , Giuseppe Savaré

In this article we present a numerical method for the Stokes flow of an Oldroyd-B fluid. The viscoelastic stress evolves according to a constitutive law formulated in terms of the upper convected time derivative. A finite difference method…

数值分析 · 数学 2024-01-09 Ben S. Ashby , Tristan Pryer

A general organizing principle is proposed that can be used to derive the equations of motion describing the near-equilibrium dynamics of causal and thermodynamically stable relativistic systems. The latter are found to display some new…

核理论 · 物理学 2024-06-04 Lorenzo Gavassino , Marcelo M. Disconzi , Jorge Noronha

We show that the Nernst-Planck-Euler system, which models ionic electrodiffusion in fluids, has global strong solutions for arbitrarily large data in the two dimensional bounded domains. The assumption on species is either there are two…

偏微分方程分析 · 数学 2022-12-27 Dapeng Du , Jingyu Li , Yansheng Ma , Ruyi Pang

We consider the stochastic differential equation $$ dX_t = b(X_t) dt + dL_t,$$ where the drift $b$ is a generalized function and $L$ is a symmetric one dimensional $\alpha$-stable L\'evy processes, $\alpha \in (1, 2)$. We define the notion…

概率论 · 数学 2018-01-11 Siva Athreya , Oleg Butkovsky , Leonid Mytnik

Classical conditions for ensuring the robust stability of a linear system in feedback with a sector-bounded nonlinearity include small gain, circle, passivity, and conicity theorems. In this work, we present a similar stability condition,…

最优化与控制 · 数学 2019-09-18 Saman Cyrus , Laurent Lessard

The Nernst-Planck-Navier-Stokes system models electrodiffusion of ions in a fluid. We prove global existence of solutions in bounded domains in three dimensions with either blocking (no-flux) or uniform selective (special Dirichlet)…

偏微分方程分析 · 数学 2020-08-25 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

The well-known problem of unidirectional plane flow of a fluid in a half-space due to the impulsive motion of the plate it rests upon is discussed in the context of the second-grade and the Oldroyd-B non-Newtonian fluids. The governing…

流体动力学 · 物理学 2010-12-03 Ivan C. Christov

We consider the system of partial differential equations governing two-dimensional flows of a robust class of viscoelastic rate-type fluids with stress diffusion, involving a general objective derivative. The studied system generalizes the…

偏微分方程分析 · 数学 2022-06-08 Miroslav Bulíček , Josef Málek , Casey Rodriguez

The system of compressible adiabatic flow through porous media is considered in $\mathbb{R}^{3}$ in the present paper. The global existence and uniqueness of classical solutions are obtained when the initial data is near its equilibrium. We…

偏微分方程分析 · 数学 2012-11-08 Guochun Wu Zhong Tan , Jun Huang

Aggregation equations, such as the parabolic-elliptic Patlak-Keller-Segel model, are known to have an optimal threshold for global existence vs. finite-time blow-up. In particular, if the diffusion is absent, then all smooth solutions with…

偏微分方程分析 · 数学 2021-09-22 Matthew Rosenzweig , Gigliola Staffilani

In this paper, we first establish the regularity theorem for suitable weak solutions to the Ericksen-Leslie system in dimensions two. Building on such a regularity, we then establish the existence of a global weak solution to the…

偏微分方程分析 · 数学 2015-06-16 Jinrui Huang , Fanghua Lin , Changyou Wang

Logarithmic conformation reformulations for viscoelastic constitutive laws have alleviated the high Weissenberg number problem, and the exploration of highly elastic flows became possible. However, stabilized formulations for logarithmic…

计算工程、金融与科学 · 计算机科学 2021-12-14 Stefan Wittschieber , Leszek Demkowicz , Marek Behr

The global existence of classical solutions to strongly coupled parabolic systems is shown to be equivalent to the availability of an iterative scheme producing a sequence of solutions with uniform continuity in the BMO norms. Amann's…

偏微分方程分析 · 数学 2014-09-17 Dung Le

The Muskat problem models the dynamics of the interface between two incompressible immiscible fluids with different constant densities. In this work we prove three results. First we prove an $L^2(\R)$ maximum principle, in the form of a new…

偏微分方程分析 · 数学 2016-02-22 Peter Constantin , Diego Cordoba , Francisco Gancedo , Robert M. Strain

In this paper, the existence and asymptotic behavior of $C^1$ solutions to the multidimensional compressible Euler equations with damping on the framework of Besov space are considered. We weaken the regularity requirement of the initial…

偏微分方程分析 · 数学 2009-05-10 Daoyuan Fang , Jiang Xu