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We consider steady solutions to the incompressible Euler equations in a two-dimensional channel with rigid walls. The flow consists of two periodic layers of constant vorticity separated by an unknown interface. Using global bifurcation…

偏微分方程分析 · 数学 2025-06-23 Alex Doak , Karsten Matthies , Jonathan Sewell , Miles H. Wheeler

Exact solutions of both the Navier-Stokes and Euler equations are found on the surface of a sphere. Under the assumption of a vanishing convection term, the flow of two oppositely rotating point vortices at the poles turns out to be the…

经典分析与常微分方程 · 数学 2025-05-07 Sun-Chul Kim , Habin Yim

In this paper, we construct a family of global solutions to the incompressible Euler equation on a standard 2-sphere. These solutions are odd-symmetric with respect to the equatorial plane and rotate with a constant angular speed around the…

偏微分方程分析 · 数学 2024-11-13 Daomin Cao , Shuanglong Li , Guodong Wang

The present paper studies the structure of the set of stationary solutions to the incompressible Euler equations on the rotating unit sphere that are near two basic zonal flows: the zonal Rossby-Haurwitz solution of degree 2 and the zonal…

偏微分方程分析 · 数学 2023-01-24 Marc Nualart

This paper presents a pioneering investigation into the existence of traveling wave solutions for the two-dimensional Euler equations with constant vorticity in a curved annular domain, where gravity acts radially inward. This configuration…

偏微分方程分析 · 数学 2025-09-22 Liang Li , Quan Wang

We construct steady non-spherical bubbles and drops, which are traveling wave solutions to the axisymmetric two-phase Euler equations with surface tension, whose inner phase is a bounded connected domain. The solutions have a uniform…

偏微分方程分析 · 数学 2025-03-10 David Meyer , Lukas Niebel , Christian Seis

We construct global curves of rotational traveling wave solutions to the $2D$ water wave equations on a compact domain. The real analytic interface is subject to surface tension, while gravitational effects are ignored. In contrast to the…

偏微分方程分析 · 数学 2024-07-25 Gary Moon , Yilun Wu

We rigorously construct continuous curves of rotating vortex patch solutions to the two-dimensional Euler equations. The curves are large in that, as the parameter tends to infinity, the minimum along the interface of the angular fluid…

偏微分方程分析 · 数学 2021-07-30 Zineb Hassainia , Nader Masmoudi , Miles H. Wheeler

Vortex streets are periodic configurations of vortices propagating through an irrotational flow. In this paper, we study streets of hollow vortices, which are solutions to the free boundary $2$-d irrotational incompressible Euler equations.…

偏微分方程分析 · 数学 2025-12-23 Vasileios N. Oikonomou , Samuel Walsh

The motion of compressible, inviscid fluid under the constant pressure on a rotating sphere is studied. The hodograph equations for the corresponding Euler equation are presented. They provide us with the class of solutions of the Euler…

数学物理 · 物理学 2026-03-09 B. G. Konopelchenko , G. Ortenzi

We obtain uncountably many periodic solutions to the singular Yamabe problem on a round sphere, that blow up along a great circle. These are (complete) constant scalar curvature metrics on the complement of $S^1$ inside $S^m$, $m\geq 5$,…

微分几何 · 数学 2018-06-06 Renato G. Bettiol , Paolo Piccione , Bianca Santoro

In this paper we mainly investigate the traveling wave solution of the two dimensional Euler equations with gravity at the free surface over a flat bed. We assume that the free surface is almost periodic in the horizontal direction. Using…

偏微分方程分析 · 数学 2018-05-24 Wei Luo , Zhaoyang Yin

We study existence and non-existence of constant scalar curvature metrics conformal and arbitrarily close to homogeneous metrics on spheres, using variational techniques. This describes all critical points of the Hilbert-Einstein functional…

微分几何 · 数学 2013-08-07 Renato G. Bettiol , Paolo Piccione

We consider relative equilibrium solutions of the two-dimensional Euler equations in which the vorticity is concentrated on a union of finite-length vortex sheets. Using methods of complex analysis, more specifically the theory of the…

流体动力学 · 物理学 2020-03-12 Bartosz Protas , Takashi Sakajo

The existence of a solution to the two dimensional incompressible Euler equations in singular domains was established in [G\'erard-Varet and Lacave, The 2D Euler equation on singular domains, submitted]. The present work is about the…

偏微分方程分析 · 数学 2013-10-22 Christophe Lacave

This paper gives an analysis of the movement of n+1 almost parallel filaments or vortices. Starting from a polygonal equilibrium of n vortices with equal circulation and one vortex at the center of the polygon, we find bifurcation of…

动力系统 · 数学 2013-03-27 C. García-Azpeitia , J. Ize

We study the Euler equations on a rotating unit sphere, focusing on the dynamics of vortex caps. Leveraging the $L^1$-stability of monotone, longitude-independent profiles, we demonstrate that certain ill-prepared initial data within the…

偏微分方程分析 · 数学 2025-05-20 Gian Marco Marin , Emeric Roulley

In this paper, we obtain families of two-fold doubly-connected uniformly rotating vortex patches of the 2-D incompressible Euler equations emanating from some specific annuli. The main difficulty comes from strong degeneracy of the problem,…

偏微分方程分析 · 数学 2024-01-03 Yuchen Wang , Xin Xu , Maolin Zhou

This study analyzes steady periodic hydroelastic waves propagating on the water surface of finite depth beneath nonlinear elastic membranes. Unlike previous work \cite{BaldiT,BaldiT1,Toland,Toland1}, our formulation accommodates rotational…

偏微分方程分析 · 数学 2025-08-07 Yong Zhang

In this paper, we construct new, uniformly-rotating solutions of the vortex sheet equation bifurcating from circles with constant vorticity amplitude. The proof is accomplished via a Lyapunov-Schmidt reduction and a second order expansion…

偏微分方程分析 · 数学 2020-12-17 Javier Gómez-Serrano , Jaemin Park , Jia Shi , Yao Yao
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