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The aim of this paper is to prove the existence of ${\mathcal R}$-bounded solution operator families for a resolvent problem on the upper half-space arising from a compressible fluid model of Korteweg type with free boundary condition. Such…

Analysis of PDEs · Mathematics 2018-01-16 Hirokazu Saito

In this paper, around a global smooth irrotational solution to the classical isentropic compressible Euler-Poisson system, we construct classical solutions to the one-species relativistic Vlasov-Maxwell-Boltzmann system on any finite time…

Analysis of PDEs · Mathematics 2026-05-19 Yong Wang , Hang Xiong , Hongyao Zhang

The motion of a compressible inviscid radiative flow can be described by the radiative Euler equations, which consists of the Euler system coupled with a Poisson equation for the radiative heat flux through the energy equation. Although…

Analysis of PDEs · Mathematics 2024-09-24 Huijiang Zhao , Boran Zhu

A system of boundary-domain integral equations is derived from the bidimensional Dirichlet problem for the diffusion equation with variable coefficient using the novel parametrix from [22] different from the one in [5,18]. Mapping…

Analysis of PDEs · Mathematics 2020-11-23 C. F. Portillo , Z. W. Woldemicheal

Consider the stationary Boltzmann equation in 2D convex domains with diffusive boundary condition. In this paper, we establish the hydrodynamic limits while the boundary layers are present, and derive the steady Navier-Stokes-Fourier system…

Analysis of PDEs · Mathematics 2021-08-25 Lei Wu

We study Boltzmann-Fermi-Dirac equation when quantum effects are taken into account in dilute gas dynamics. By employing new estimates on trilinear terms of collision kernels, we prove the global existence of the classical solution to…

Analysis of PDEs · Mathematics 2021-02-05 Ning Jiang , Linjie Xiong , Kai Zhou

We consider the Keller-Segel system with a volume-filling effect and study its incompressible limit. Due to the presence of logistic-type sensitivity, $K=1$ is the critical threshold. When $K>1$, as the diffusion exponent tends to infinity,…

Analysis of PDEs · Mathematics 2024-12-10 Qingyou He , Mingyue Zhang

In this paper we establish a new convex integration approach for the barotropic compressible Euler equations in two space dimensions. In contrast to existing literature, our new method generates not only the momentum for given density, but…

Analysis of PDEs · Mathematics 2024-10-29 Simon Markfelder

This paper develops a modified version of the Boltzmann equation for micro-scale particulate flow with capture and diffusion that describes the colloidal-suspension-nano transport in porous media. An equivalent sink term is introduced into…

Fluid Dynamics · Physics 2020-01-23 Oleg Dinariev , Afonso Rego , Pavel Bedrikovetsky

We consider the Cauchy problem for the barotropic Euler system coupled to Helmholtz or Poisson equations, in the whole space. We assume that the initial density is small enough, and that the initial velocity is close to some reference…

Analysis of PDEs · Mathematics 2019-06-20 Šárka Nečasová , Xavier Blanc , Raphaël Danchin , Bernard Ducomet , andš Nečasová

In this paper, we consider the quasi-neutral limit of a three dimensional Euler-Poisson system of compressible fluids coupled to a magnetic field. We prove that, as Debye length tends to zero, periodic initial-value problems of the model…

Analysis of PDEs · Mathematics 2018-07-04 Jianwei Yang

In the diffusive scaling and in the whole space, we prove the global well-posedness of the scaled Boltzmann-Bose-Einstein (briefly, BBE) equation with high temperature in the low regularity space $H^2_xL^2$. In particular, we quantify the…

Analysis of PDEs · Mathematics 2023-08-23 Ling-Bing He , Ning Jiang , Yu-long Zhou

In this work, the space of admissible entropy functions for the compressible multicomponent Euler equations is explored, following up on [Harten, \textit{J. Comput. Phys.}, 49 (1), 1983, pp. 151-164]. This effort allows us to prove a…

Analysis of PDEs · Mathematics 2019-09-24 Ayoub Gouasmi , Karthik Duraisamy , Scott M. Murman , Eitan Tadmor

In this paper, we study the zero-viscosity limit of the compressible Navier-Stokes equations in a half-space with non-slip boundary condition. We justify the Prandtl boundary layer expansion for the analytic data: the compressible…

Analysis of PDEs · Mathematics 2023-05-17 Chao Wang , Yuxi Wang , Zhifei Zhang

The study of flows over an obstacle is one of the fundamental problems in fluids. In this paper we establish the global validity of the diffusive limit for the Boltzmann equations to the Navier-Stokes-Fourier system in an exterior domain.…

Analysis of PDEs · Mathematics 2025-01-17 Junhwa Jung

The incompressible limit of nonlinear diffusion equations of porous medium type has attracted a lot of attention in recent years, due to its ability to link the weak formulation of cell-population models to free boundary problems of…

Analysis of PDEs · Mathematics 2021-08-03 Noemi David , Tomasz Dębiec , Benoît Perthame

The justification of hydrodynamic limits in non-convex domains has long been an open problem due to the singularity at the grazing set. In this paper, we investigate the unsteady neutron transport equation in a general bounded domain with…

Analysis of PDEs · Mathematics 2023-03-28 Zhimeng Ouyang

We propose a well-posed Maxwell-type boundary condition for the linear moment system in half-space. As a reduction of the Boltzmann equation, the moment equations are available to model Knudsen layers near a solid wall, where proper…

Analysis of PDEs · Mathematics 2023-01-31 Ruo Li , Yichen Yang

We study the local-in-time hydrodynamic limit of the relativistic Boltzmann equation using a Hilbert expansion. More specifically, we prove the existence of local solutions to the relativistic Boltzmann equation that are nearby the local…

Analysis of PDEs · Mathematics 2011-04-05 Jared Speck , Robert M. Strain

For the Boltzmann equation with cutoff hard potentials, we construct the unique global solution converging with an exponential rate in large time to global Maxwellians not only for the specular reflection boundary condition with the bounded…

Analysis of PDEs · Mathematics 2020-11-04 Renjun Duan , Gyounghun Ko , Donghyun Lee