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We study the global existence, uniqueness and exponential stability of mild solutions to the Boussinesq systems equipped with a generalized gravitational field on the framework of non-compact Riemannian manifolds. We work on some manifolds…

Analysis of PDEs · Mathematics 2025-08-04 Pham Truong Xuan , Tran Thi Ngoc

It is known that the energy of a weak solution to the Euler equation is conserved if it is slightly more regular than the Besov space $B^{1/3}_{3,\infty}$. When the singular set of the solution is (or belongs to) a smooth manifold, we…

Analysis of PDEs · Mathematics 2008-03-17 Roman Shvydkoy

We study the motion of a particle in a plane subject to an attractive central force with inverse-square law on one side of a wall at which it is reflected elastically. This model is a special case of a class of systems considered by…

Dynamical Systems · Mathematics 2021-02-03 Giovanni Felder

In this paper we investigate the power instability properties and give necessary and sufficient conditions for the concepts of uniform power instability, power instability and strong power instability for linear discrete-time system…

Dynamical Systems · Mathematics 2013-05-10 Ioan-Lucian Popa

An N=1 supersymmetric extension of the Ruijsenaars-Schneider three-body model is constructed and its integrability is established. In particular, three functionally independent Grassmann-odd constants of the motion are given and their…

Exactly Solvable and Integrable Systems · Physics 2023-09-26 Anton Galajinsky

We consider the Boussinesq approximation for Rayleigh-B\'{e}nard convection perturbed by an additive noise and with boundary conditions corresponding to heating from below. In two space dimensions, with sufficient stochastic forcing in the…

Analysis of PDEs · Mathematics 2016-09-21 J. Földes , N. Glatt-Holtz , G. Richards , J. P. Whitehead

We investigate the global existence and exponential decay of mild solutions for the Boussinesq systems in $L^p$-phase spaces on the framework of real hyperbolic manifold $\mathbb{H}^d(\mathbb{R})$, where $d \geqslant 2$ and $1<p\leq d$. We…

Analysis of PDEs · Mathematics 2025-10-06 Pham Truong Xuan , Tran Thi Ngoc

Boussinesq systems of nonlinear partial differential equations are fundamental equations in geophysical fluid dynamics. In this paper, we use asymmetric ideas and moving frames to solve the two-dimensional Boussinesq equations with partial…

Fluid Dynamics · Physics 2008-07-01 Xiaoping Xu

We prove that the "good" Boussinesq model with the periodic boundary condition is locally well-posed in the space $H^{s}\times H^{s-2}$ for $s > -3/8$. In the proof, we employ the normal form approach, which allows us to explicitly extract…

Analysis of PDEs · Mathematics 2012-01-11 Seungly Oh , Atanas Stefanov

We consider the discrete Boussinesq integrable system and the compatible set of differential difference, and partial differential equations. The latter not only encode the complete hierarchy of the Boussisesq equation, but also incorporate…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Anastasios Tongas , Frank Nijhoff

We establish the well-posedness in Gevrey function space with optimal class of regularity 2 for the three dimensional Prandtl system without any structural assumption. The proof combines in a novel way a new cancellation in the system with…

Analysis of PDEs · Mathematics 2020-08-10 Wei-Xi Li , Nader Masmoudi , Tong Yang

In this paper we address the Cauchy problem for two systems modeling the propagation of long gravity waves in a layer of homogeneous, incompressible and inviscid fluid delimited above by a free surface, and below by a non-necessarily flat…

Analysis of PDEs · Mathematics 2021-10-01 Vincent Duchêne , Samer Israwi

This paper investigates solution stability properties of unregularized tracking-type optimal control problems constrained by the Boussinesq system. In our model, the controls may appear linearly and distributed in both of the equations that…

Optimization and Control · Mathematics 2024-02-13 Nicolai Jork , John Sebastian H. Simon

The Boussinesq-Peregrine system is derived from the water waves system in presence of topographic variation under the hypothesis of shallowness and small amplitude regime. The system becomes significantly simpler (at least in the…

Analysis of PDEs · Mathematics 2024-06-10 Luc Molinet , Raafat Talhouk

This paper establishes the global well-posedness of strong solutions to the nonhomogeneous magnetic B\'enard system with positive density at infinity in the whole space $\mathbb{R}^2$. More precisely, we obtain the global existence and…

Analysis of PDEs · Mathematics 2024-07-23 Jieqiong Liu

We prove long-term regularity of solutions of the one-fluid Euler-Maxwell system in 3 spatial dimensions, in the case of small initial data with nontrivial vorticity.

Analysis of PDEs · Mathematics 2016-11-14 Alexandru Ionescu , Victor Lie

We consider the three-dimensional compressible Navier--Stokes system with the Coriolis force and prove the long-time existence of a unique strong solution. More precisely, we show that for any $0<T<\infty$ and arbitrary large initial data…

Analysis of PDEs · Mathematics 2025-05-06 Mikihiro Fujii , Keiichi Watanabe

In this paper, we prove global well-posedness of smooth solutions to the two-dimensional incompressible Boussinesq equations with only a velocity damping term when the initial data is close to an nontrivial equilibrium state $(0,x_2)$. As a…

Analysis of PDEs · Mathematics 2018-12-27 Renhui Wan

In this paper, we obtain the local-in-time existence and uniqueness of solution to the Degasperis-Procesi equation in $B^1_{\infty,1}(\R)$. Moreover, we prove that the data-to-solution of this equation is continuous but not uniformly…

Analysis of PDEs · Mathematics 2021-05-19 Jinlu Li , Yanghai Yu , Weipeng Zhu

We consider a system describing the long-time dynamics of an hydrodynamical, density-dependent flow under the effects of gravitational forces. We prove that if the Froude number is sufficiently small such system is globally well posed with…

Analysis of PDEs · Mathematics 2017-04-07 Stefano Scrobogna