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We prove global existence of solutions to the Cauchy problem for the compressible Navier-Stokes equations in Euclidean spaces, given initial data with small norms in Besov and critical weighted Besov spaces. Global existence and a priori…

Analysis of PDEs · Mathematics 2023-12-12 Dáithí Ó hAodha

We consider the compressible Euler system for ideal gas flow in the absence of any forces except the internal thermodynamic pressure. In this setting, and in dimensions higher 1, it is known that wave-focusing can drive Euler solutions to…

Analysis of PDEs · Mathematics 2026-04-27 Helge Kristian Jenssen

In this paper, we consider the 1D compressible Euler equation with the damping coefficient $\lambda/(1+t)^{\mu}$. Under the assumption that $0\leq \mu <1$ and $\lambda >0$ or $\mu=1$ and $\lambda > 2$, we prove that solutions exist globally…

Analysis of PDEs · Mathematics 2019-09-13 Yuusuke Sugiyama

The present paper is dedicated to the global large solutions and incompressible limit for the compressible flow of liquid crystals under the assumption on almost constant density and large volume viscosity. The result is based on Fourier…

Analysis of PDEs · Mathematics 2018-05-29 Xiaoping Zhai , Zhi-min Chen

We consider the $\alpha$-Euler equations on a bounded three-dimensional domain with frictionless Navier boundary conditions. Our main result is the existence of a strong solution on a positive time interval, uniform in $\alpha$, for…

Analysis of PDEs · Mathematics 2015-09-08 A. V. Busuioc , D. Iftimie , M. C. Lopes Filho , H. J. Nussenzveig Lopes

We are concerned with a global existence theory for finite-energy solutions of the multidimensional Euler-Poisson equations for both compressible gaseous stars and plasmas with large initial data of spherical symmetry. One of the main…

Analysis of PDEs · Mathematics 2023-11-14 Gui-Qiang G. Chen , Lin He , Yong Wang , Difan Yuan

Presented are two results on the formation of finite time singularities of solutions to the compressible Euler equations in two and three space dimensions for isentropic, polytropic, ideal fluid flows. The initial velocity is assumed to be…

Analysis of PDEs · Mathematics 2012-03-23 Zhen Lei , Yi Du , Qingtian Zhang

The three-dimensional equations for the compressible flow of liquid crystals are considered. An initial-boundary value problem is studied in a bounded domain with large data. The existence and large-time behavior of a global weak solution…

Analysis of PDEs · Mathematics 2015-05-30 Dehua Wang , Cheng Yu

We investigate the two-dimensional ($2$D) inviscid compressible flow equations in axisymmetric coordinates, constrained by an ideal gas equation of state (EOS). Beginning with the assumption that the $2$D velocity field is space-time…

Fluid Dynamics · Physics 2020-12-29 Jesse F. Giron , Scott D. Ramsey , Roy S. Baty

In this paper we consider the incompressible 2D Euler equation in an annular domain with non-penetration boundary condition. In this setting, we prove the existence of a family of non-trivially smooth time-periodic solutions at an…

Analysis of PDEs · Mathematics 2023-11-14 Ángel Castro , Daniel Lear

The initial boundary value problem for the three-dimensional incompressible flow of liquid crystals is considered in a bounded smooth domain. The existence and uniqueness is established for both the local strong solution with large initial…

Analysis of PDEs · Mathematics 2011-12-25 Xiaoli Li , Dehua Wang

We consider the compressible Euler equation with a Coriolis term and prove a lower bound on the time of existence of solutions in terms of the speed of rotation, sound speed and size of the initial data. Along the way, we obtain precise…

Analysis of PDEs · Mathematics 2026-04-13 Haram Ko , Benoit Pausader , Ryo Takada , Klaus Widmayer

We consider the evolution of two-dimensional incompressible flows with variable density, only bounded and bounded away from zero. Assuming that the initial velocity belongs to a suitable critical subspace of L^2 , we prove a global-in-time…

Analysis of PDEs · Mathematics 2024-04-04 Raphaël Danchin

The three-dimensional equations of compressible magnetohydrodynamic isentropic flows are considered. An initial-boundary value problem is studied in a bounded domain with large data. The existence and large-time behavior of global weak…

Analysis of PDEs · Mathematics 2015-05-13 Xianpeng Hu , Dehua Wang

Exploring the general analytical solutions to the Euler equations for ideal fluids holds significant theoretical and practical importance. The steady flows in two-dimensional spaces are considered whether there is an analytical solution in…

Fluid Dynamics · Physics 2025-10-29 Wenan Zou

We consider the model of viscous compressible multi-fluids with multiple velocities. We review different formulations of the model and the existence results for boundary value problems. We analyze crucial mathematical difficulties which…

Analysis of PDEs · Mathematics 2017-11-22 Alexander Mamontov , Dmitriy Prokudin

For any positive integer $k$, we prove the existence of nontrivial $C^k$-smooth uniformly rotating solutions to the 2D incompressible Euler equations with compact spatial support. These solutions, which can be chosen to be small…

Analysis of PDEs · Mathematics 2025-11-18 Alberto Enciso , Antonio J. Fernández , David Ruiz

The Cauchy problem for the three-dimensional compressible flow of nematic liquid crystals is considered. Existence and uniqueness of the global strong solution are established in critical Besov spaces provided that the initial datum is…

Analysis of PDEs · Mathematics 2024-08-21 Xianpeng Hu , Hao Wu

Starting from the local-in-time classical solution to the compressible Euler system with impermeable boundary condition in half-space, by employing the coupled weak viscous layers (governed by linearized compressible Prandtl equations with…

Analysis of PDEs · Mathematics 2021-08-03 Ning Jiang , Yi-Long Luo , Shaojun Tang

We prove the global-in-time existence of weak solutions to the Navier-Stokes equations of compressible isentropic flow in three space dimensions with adiabatic exponent $\gamma\ge1$. Initial data and solutions are small in $L^2$ around a…

Analysis of PDEs · Mathematics 2015-05-30 Anthony Suen