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This paper is dedicated to the Cauchy problem of the incompressible Oldroyd-B model with general coupling constant $\om\in (0,1)$. It is shown that this set of equations admits a unique global solution in a certain hybrid Besov spaces for…

偏微分方程分析 · 数学 2014-10-29 Ruizhao Zi

This paper studies the global well-posedness and optimal decay estimates to the Oldroyd-B model in $\mathbb R^d$ ($d\geq2$). By utilizing the special structure of this system, we give a simplified proof to the global existence of solutions…

偏微分方程分析 · 数学 2025-02-03 Haifeng Shang

Consider the set of equations describing Oldroyd-B fluids in an exterior domain. It is shown that this set of equations admits a unique, global solution in a certain function space provided the initial data, but not necessarily the coupling…

偏微分方程分析 · 数学 2012-04-24 Daoyuang Fang , Matthias Hieber , Ruizhao Zi

Consider a global wellposed problem for the incompressible Oldroyd-B model. It is shown that this set of equations admits a unique global solution provided the initial horizontal velocity $u^h_0$, the product $\om u^d_0$ of the coupling…

偏微分方程分析 · 数学 2015-09-22 Daoyuan Fang , Ruizhao Zi

We prove the global well-posedness in the critical Besov spaces for the incompressible Oldroyd-B model without damping mechanism on the stress tensor in $\mathbb{R}^d$ for the small initial data. Our proof is based on the observation that…

偏微分方程分析 · 数学 2019-07-24 Qionglei Chen , Xiaonan Hao

The Cauchy problem of the compressible Oldroyd-B model without damping mechanism in R^n$ with $n\ge2$ is considered. The lack of dissipation in density and stress tensor in the model is compensated by exploiting an intrinsic structure and…

偏微分方程分析 · 数学 2020-03-03 Xiaoping Zhai , Zhi-Min Chen

We obtain the global small solutions to the generalized Oldroyd-B model without damping on the stress tensor in $\mathbb{R}^n$. Our result give positive answers partially to the question proposed by Elgindi and Liu (Remark 2 in Elgindi and…

偏微分方程分析 · 数学 2021-06-29 Xiaoping Zhai , Yuanyuan Dan , Yongsheng Li

We consider the Cauchy problem ($\mathbb{R}^d, d=2,3$) and the initial boundary values problem ($\mathbb{T}^d, d=2,3$)associated to the compressible Oldroyd-B model which is first derived by Barrett, Lu and S\"{u}li [Existence of large-data…

偏微分方程分析 · 数学 2024-08-29 Yajuan Zhao , Yongsheng Li , Tao Liang , Xiaoping Zhai

We start with the compressible Oldroyd--B model derived in \cite{Barrett-Lu-Suli} ({\em J. W. Barrett, Y. Lu, E. S\"uli. Existence of large-data finite-energy global weak solutions to a compressible Oldroyd--B model. Comm. Math. Sci. 15…

偏微分方程分析 · 数学 2019-10-22 Yong Lu , Milan Pokorný

In this paper, we consider the Cauchy problem for a compressible Oldroyd-B model in three dimensions. Under some smallness assumptions on the initial data, we obtain the global wellposedness of strong solution with uniform regularity.…

偏微分方程分析 · 数学 2022-04-07 Sili Liu , Yingshan Chen

The purpose of this work is to study the global wellposedness and large time behavior results of strong solutions for the compressible Oldroyd-B model derived by Barrett, Lu, S\"uli (Commun. Math. Sci., 15, 1265--1323, 2017). Exploiting the…

偏微分方程分析 · 数学 2021-05-04 Xiaoping Zhai , Yongsheng Li

In this paper, we consider global strong solutions and uniform-in-time vanishing damping limit for the inviscid Oldroyd-B model in R^d, where d=2 and 3. The well-recognized problem of the global existence of smooth solutions for the 2D…

偏微分方程分析 · 数学 2024-10-15 Xinyu Cheng , Zhaonan Luo , Zhaojie Yang , Cheng Yuan

In this paper, we prove the global existence of analytical solutions to the compressible Oldroyd-B model without retardation near a non-vacuum equilibrium in ${\mathbb R}^n$ $(n=2,3)$. Zero retardation results in zero dissipation in the…

偏微分方程分析 · 数学 2023-06-01 Xinghong Pan

We show that the the 2 D quasi-geostrophic equation has global and unique strong solution, when the (large) data belongs in the critical, scale invariant space $\dot{B}^{2-2\al}_{2, \infty}\cap L^{2/(2\al-1)}$.

偏微分方程分析 · 数学 2007-05-23 Atanas Stefanov

We prove global existence and uniqueness of solutions of Oldroyd-B systems with relatively small data in $\Rr^d$, in a large functional setting ($C^{\alpha}\cap L^1$). This is a stability result, solutions select an equilibrium and converge…

偏微分方程分析 · 数学 2010-09-02 Peter Constantin , Weiran Sun

The unique global strong solution in the Chemin-Lerner type space to the Cauchy problem on the Boltzmann equation for hard potentials is constructed in perturbation framework. Such solution space is of critical regularity with respect to…

偏微分方程分析 · 数学 2013-10-11 Renjun Duan , Shuangqian Liu , Jiang Xu

In the first part of this work, we investigate the Cauchy problem for the $d$-dimensional incompressible Oldroyd-B model with dissipation in the stress tensor equation. By developing a weighted Chemin-Lerner framework combined with a…

偏微分方程分析 · 数学 2025-04-18 Tao Liang , Yongsheng Li , Xiaoping Zhai

In this paper, we prove the global existence of small smooth solutions to the three-dimensional incompressible Oldroyd-B model without damping on the stress tensor. The main difficulty is the lack of full dissipation in stress tensor. To…

偏微分方程分析 · 数学 2018-03-20 Yi Zhu

In this paper, we study the Cauchy's problem of the compressible Euler system with damping and establish the global-in-time well-posedness in $L^p$-type critical Besov spaces for $1\leq p<2$. To achieve it, a new product estimate is…

偏微分方程分析 · 数学 2026-02-27 Jianzhong Zhang , Ying Sui , Xiliang Li

We consider the Cauchy problem to the 3D barotropic compressible Navier-Stokes equation. We prove global well-posedness, assuming that the initial data $(\rho_0-1,u_0)$ has small norms in the critical Besov space…

偏微分方程分析 · 数学 2025-09-23 Zihua Guo , Zihao Song , Minghua Yang
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