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We consider several different bidirectional Whitham equations that have recently appeared in the literature. Each of these models combine the full two-way dispersion relation from the incompressible Euler equations with a canonical shallow…

Analysis of PDEs · Mathematics 2018-04-11 Kyle M. Claassen , Mathew A. Johnson

Classical solutions of the three-dimensional Euler equations of an ideal incompressible fluid conserve the helicity. We introduce a new weak formulation of the vorticity formulation of the Euler equations in which (by implementing the Bony…

Analysis of PDEs · Mathematics 2026-01-28 Daniel W. Boutros , Edriss S. Titi

We are concerned with the global existence and large time behavior of entropy solutions to the one dimensional unipolar hydrodynamic model for semiconductors in the form of Euler-Poisson equations in a bounded interval. In this paper, we…

Analysis of PDEs · Mathematics 2018-07-25 Feimin Huang , Tianhong Li , Huimin Yu , Difan Yuan

In this paper, we established the global existence of supersonic entropy solutions with a strong contact discontinuity over Lipschitz wall governed by the two-dimensional steady exothermically reacting Euler equations, when the total…

Analysis of PDEs · Mathematics 2017-09-12 Wei Xiang , Yongqian Zhang , Qin Zhao

We study initial-boundary value problems for the Lagrangian averaged alpha models for the equations of motion for the corotational Maxwell and inviscid fluids in 2D and 3D. We show existence of (global in time) dissipative solutions to…

Analysis of PDEs · Mathematics 2012-01-13 Dmitry Vorotnikov

In this paper, we study permutation symmetric solutions of the incompressible Euler equation. We show that the dynamics of these solutions can be reduced to an evolution equation on a single vorticity component $\omega_1$, and we…

Analysis of PDEs · Mathematics 2024-12-10 Evan Miller

We study the axisymmetric self-similar solutions $(\mathbf{u},\mathbf{B})$ to the stationary MHD equations without magnetic diffusion, where $\mathbf{B}$ has only the swirl component. Our first result states that in…

Analysis of PDEs · Mathematics 2025-06-26 Shaoheng Zhang

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

In this paper we study existence of traveling waves for 1-D compressible Euler system with dispersion (which models quantum effects through the Bohm potential) and nonlinear viscosity in the context of quantum hydrodynamic models for…

Analysis of PDEs · Mathematics 2020-04-16 Corrado Lattanzio , Delyan Zhelyazov

We consider the problem of finding a solution to the incompressible Euler equations $$ \omega_t + v\cdot \nabla \omega = 0 \quad \hbox{ in } \mathbb{R}^2 \times (0,\infty), \quad v(x,t) = \frac 1{2\pi} \int_{{\mathbb R}^2} \frac…

Analysis of PDEs · Mathematics 2026-03-09 Juan Dávila , Manuel del Pino , Monica Musso , Shrish Parmeshwar

A review of analyses based upon anti-parallel vortex structures suggests that structurally stable vortex structures with eroding circulation may offer a path to the study of rapid vorticity growth in solutions of Euler's equations in $…

Fluid Dynamics · Physics 2016-11-03 Stephen Childress , Andrew D. Gilbert , Paul Valiant

In this paper, we are concerned with the three dimensional Euler equations driven by an additive stochastic forcing. First, we construct global H\"{o}lder continuous (stationary) solutions in $C(\mathbb{R};C^{\vartheta})$ space for some…

Probability · Mathematics 2025-05-20 Lin Lü

In this paper, we investigate the uniform regularity of solutions to the 3-dimensional isentropic compressible Navier-Stokes system with free surfaces and study the corresponding asymptotic limits of such solutions to that of the…

Analysis of PDEs · Mathematics 2015-04-08 Yu Mei , Yong Wang , Zhouping Xin

We prove that the 3-D free-surface incompressible Euler equations with regular initial geometries and velocity fields have solutions which can form a finite-time "splash" (or "splat") singularity first introduced in [9], wherein the…

Analysis of PDEs · Mathematics 2015-06-03 Daniel Coutand , Steve Shkoller

We consider axisymmetric, swirl-free solutions of the Euler equations in three and higher dimensions, of generalized anti-parallel-vortex-tube-pair-type: the initial scalar vorticity has a sign in the half-space, is odd under reflection…

Analysis of PDEs · Mathematics 2026-04-15 Stephen Gustafson , Evan Miller , Tai-Peng Tsai

This paper focuses on the 3D incompressible magnetohydrodynamic (MHD) equations with mixed partial dissipation and magnetic diffusion. Our main result assesses the global stability of perturbations near the steady solution given by a…

Analysis of PDEs · Mathematics 2019-06-13 Jiahong Wu , Yi Zhu

Singularity formation of the 3D incompressible Euler equations is known to be extremely challenging. In [18], Elgindi proved that the 3D axisymmetric Euler equations with no swirl and $C^{1,\alpha}$ initial velocity develops a finite time…

Analysis of PDEs · Mathematics 2022-06-06 Jiajie Chen , Thomas Y. Hou

In this note, we prove that the solutions obtained to the spherically symmetric Euler equations in the recent works [2, 3] are weak solutions of the multi-dimensional compressible Euler equations. This follows from new uniform estimates…

Analysis of PDEs · Mathematics 2019-08-28 Matthew R. I. Schrecker

The compressible Navier-Stokes-Allen-Cahn system models the motion of a mixture of two macroscopically immiscible viscous compressible fluids. In this paper, we are concerned with the large time behavior of solutions to the Cauchy problem…

Analysis of PDEs · Mathematics 2025-10-24 Dan Lei , Zhengzheng Chen

This paper investigates the global dynamics of the Euler--Riesz system in three dimensions, focusing on the well-posedness and large-time behavior of solutions near equilibrium. The system generalizes classical interactions by incorporating…

Analysis of PDEs · Mathematics 2024-12-31 Young-Pil Choi , Jinwook Jung , Yoonjung Lee
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