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We show global existence and boundedness of classical solutions to a virus infection model with chemotaxis in bounded smooth domains of arbitrary dimension and for any sufficiently regular nonnegative initial data and homogeneous Neumann…

偏微分方程分析 · 数学 2017-11-06 Bingran Hu , Johannes Lankeit

We give a simple proof of the uniqueness of fluid particle trajectories corresponding to: 1) the solution of the two-dimensional Navier Stokes equations with an initial condition that is only square integrable, and 2) the local strong…

偏微分方程分析 · 数学 2015-05-13 Masoumeh Dashti , James C. Robinson

This manuscript deals with the three-dimensional version of a flux-limited Keller-Segel system coupled to the incompressible Stokes equations through transport and buoyancy. The main goal consists in verifying that within a certain…

偏微分方程分析 · 数学 2020-09-16 Michael Winkler

In a ball $\Omega\subset R^n$ with arbitrary $n\ge 1$, the chemotaxis-consumption system \[ \left\{ \begin{array}{l} u_t = \nabla \cdot \big(D(u)\nabla u\big) - \nabla \cdot (u\nabla v), \\[1mm] 0 = \Delta v - uv, \end{array} \right. \] is…

偏微分方程分析 · 数学 2026-01-12 Michael Winkler

In the current paper, we consider the following parabolic-elliptic semilinear Keller-Segel model on $\mathbb{R}^{N}$, \begin{equation*} \begin{cases} u_{t}=\nabla\cdot (\nabla u-\chi u\nabla v)+a u -b u^2, \quad x\in\mathbb{R}^N,\,\, t>0\cr…

偏微分方程分析 · 数学 2017-06-23 Rachidi Salako , Wenxian Shen

The present work deals with a Keller-Segel-Navier-Stokes system with potential consumption, under homogeneous Neumann boundary conditions for cell density and chemical signal, and of Dirichlet type for the velocity field, over a bounded…

偏微分方程分析 · 数学 2025-06-24 Daniel Barbosa , Gabriela Planas , Francisco Guillén-González

We analyze the forced incompressible stationary Navier-Stokes flow in $\mathbb{R}^n_+$, $n>2$. Existence of a unique solution satisfying a global integrabilty property measured in a scale of tent spaces is established for small data in…

偏微分方程分析 · 数学 2024-02-15 Gael Y. Diebou

We develop mathematical methods which allow us to study asymptotic properties of solutions to the three dimensional Navier-Stokes system for incompressible fluid in the whole three dimensional space. We deal either with the Cauchy problem…

偏微分方程分析 · 数学 2020-12-24 Marco Cannone , Grzegorz Karch , Dominika Pilarczyk , Gang Wu

In the study of local regularity of weak solutions to systems related to incompressible viscous fluids local energy estimates serve as important ingredients. However, this requires certain informations on the pressure. This fact has been…

偏微分方程分析 · 数学 2016-11-07 Joerg Wolf

This paper deals with the homogeneous Neumann boundary-value problem for the chemotaxis-consumption system \begin{eqnarray*} \begin{array}{llc} u_t=\Delta u-\chi\nabla\cdot (u\nabla v)+\kappa u-\mu u^2,\\ v_t=\Delta v-uv, \end{array}…

偏微分方程分析 · 数学 2016-08-30 Johannes Lankeit , Yulan Wang

The motion of two contiguous incompressible and viscous fluids is described within the diffuse interface theory by the so-called Model H. The system consists of the Navier-Stokes equations, which are coupled with the Cahn-Hilliard equation…

偏微分方程分析 · 数学 2024-12-10 Andrea Giorgini , Alain Miranville , Roger Temam

An equation for a viscous incompressible fluid on a spheroidal surface which is dual to the perturbation around the near-near horizon extreme Kerr (n-NHEK) black hole is derived. It is also shown that an expansion scalar $\theta$ of a…

高能物理 - 理论 · 物理学 2016-02-23 Ippei Fujisawa , Ryuichi Nakayama

We prove the global existence and uniqueness of smooth solutions to the one-dimensional barotropic Navier-Stokes system with degenerate viscosity $\mu(\rho)=\rho^\alpha$. We establish that the smooth solutions have possibly two different…

偏微分方程分析 · 数学 2020-04-22 Moon-Jin Kang , Alexis Vasseur

We study, in Part I of this series, boundedness and global existence of positive classical solutions to a parabolic-elliptic chemotaxis system with signal-dependent sensitivity and a logistic-type source on a bounded smooth domain…

偏微分方程分析 · 数学 2025-12-18 Le Chen , Ian Ruau , Wenxian Shen

This paper investigates the flux-limited chemotaxis system, proposed by Kohatsu and Senba~(2025), \begin{equation*} \begin{cases} u_t = \Delta u -\nabla\cdot(u|\nabla v|^{\alpha-2}\nabla v),\\ \:\:0=\Delta v + u, \end{cases} \end{equation*}…

偏微分方程分析 · 数学 2025-07-29 Xuan Mao , Hengling Wang , Jianlu Yan

This paper studies the chemotaxis-haptotaxis system \begin{equation}\nonumber \left\{ \begin{array}{llc} u_t=\Delta u-\chi\nabla\cdot(u\nabla v)-\xi\nabla\cdot(u\nabla w)+\mu u(1-u-w), &(x,t)\in \Omega\times (0,T),\\ v_t=\Delta v-v+u,…

偏微分方程分析 · 数学 2016-04-20 Xinru Cao

We consider the flow of two viscous and incompressible fluids within a bounded domain modeled by means of a two-phase Navier-Stokes system. The two fluids are assumed to be immiscible, meaning that they are separated by an interface. With…

偏微分方程分析 · 数学 2022-08-24 Sebastian Hensel , Alice Marveggio

The local existence of solutions to nonhomogeneous Navier-Stokes equations in cylindrical domains with arbitrary large flux is demonstrated. The existence is proved by the method of successive approximations. To show the existence with the…

偏微分方程分析 · 数学 2024-02-08 Joanna Rencławowicz , Wojciech M. Zajączkowski

We consider the Keller-Segel system with logical source \begin{align*} \begin{cases} u_t = \nabla \cdot (\phi(u)\nabla u) - \nabla \cdot (\psi(u)\nabla v)+f(u), & x \in \Omega, \; t > 0, v_t = \Delta v - v + u, & x \in \Omega, \; t > 0,…

偏微分方程分析 · 数学 2026-03-24 Shijun Li , Yashuang Zhao , Shaopeng Xu , Shengjun Li

We consider the Navier--Stokes--Fourier system in a bounded domain $\Omega \subset R^d$, $d=2,3$, with physically realistic in/out flow boundary conditions. We develop a new concept of weak solutions satisfying a general form of relative…

偏微分方程分析 · 数学 2021-05-12 Eduard Feireisl , Antonin Novotny