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This paper is concerned with the Riemann problem for the two-dimensional barotropic compressible Euler system with a general strictly increasing pressure law. By means of convex integration, the existence of infinitely many admissible weak…

Analysis of PDEs · Mathematics 2026-03-26 Kotaro Horimoto

Inspired by Abbatiello, Feireisl and Novotn\'y, we prove the global existence of dissipative turbulent solution for the compressible Navier-Stokes equations with anisotropic viscous stress tensor on unbounded domain. Our work complements…

Analysis of PDEs · Mathematics 2025-10-24 Ondřej Kreml , Šárka Nečasová , Tong Tang

In this paper, we prove the global existence of strong solutions to the two-dimensional compressible MHD equations with density dependent viscosity coefficients (known as Kazhikhov-Vaigant model) on 2D solid balls with arbitrary large…

Analysis of PDEs · Mathematics 2023-10-18 Xiangdi Huang , Wei Yan

This paper is concerned with the global existence and uniqueness of classical solutions to the barotropic compressible Navier-Stokes equations with degenerate viscosity coefficients in three-dimensional bounded domains or in the whole space…

Analysis of PDEs · Mathematics 2026-05-01 Qinghao Lei

We study the long time behavior of solutions to a nonlinear partial differential equation arising in the description of trapped rotating Bose-Einstein condensates. The equation can be seen as a hybrid between the well-known nonlinear…

Analysis of PDEs · Mathematics 2016-08-08 Alexey Cheskidov , Daniel Marahrens , Christof Sparber

In this article, we study the long time behavior of solutions of a variant of the Boussinesq system in which the equation for the velocity is parabolic while the equation for the temperature is hyperbolic. We prove that the system has a…

Mathematical Physics · Physics 2015-07-02 Animikh Biswas , Ciprian Foias , Adam Larios

This paper is concerned with the Cauchy problem for the modified two-dimensional (2D) nonhomogeneous incompressible Navier-Stokes equations with density-dependent viscosity. By fully using the structure of the system, we can obtain the key…

Analysis of PDEs · Mathematics 2026-02-02 Bing Yuan , Rong Zhang , Peng Zhou

We study well-posedness and long-time dynamics of a class of quasilinear wave equations with a strong damping. We accept the Kirchhoff hypotheses and assume that the stiffness and damping coefficients are $C^1$ functions of the $L_2$-norm…

Analysis of PDEs · Mathematics 2011-01-13 Igor Chueshov

Let (X,L) be a polarized compact manifold, i.e. L is an ample line bundle over X and denote by H the infinite dimensional space of all positively curved Hermitian metrics on L equipped with the Mabuchi metric. In this short note we show,…

Differential Geometry · Mathematics 2014-05-27 Robert J. Berman

Given a complete, connected Riemannian manifold $ \mathbb{M}^n $ with Ricci curvature bounded from below, we discuss the stability of the solutions of a porous medium-type equation with respect to the 2-Wasserstein distance. We produce…

Analysis of PDEs · Mathematics 2022-07-29 Nicolò De Ponti , Matteo Muratori , Carlo Orrieri

In this paper, we study the existence of strong solutions to the two-phase magnetohydrodynamic equations in a bounded domain $\Omega\subseteq \mathbb{R}^3$. The fluids are incompressible, viscous, and resistive. The surface tension is…

Analysis of PDEs · Mathematics 2024-10-01 Tian Jing , Dehua Wang

We find some integral formulas of Simons and Bochner type and use them to study biharmonic and biconservative submanifolds in space forms. We obtain rigidity results that in the biharmonic case represent partial answers to two well-known…

Differential Geometry · Mathematics 2018-01-25 Dorel Fetcu , Eric Loubeau , Cezar Oniciuc

We establish global well-posedness of strong solutions for the nonhomogeneous magnetohydrodynamic equations with density-dependent viscosity and initial density allowing vanish in two-dimensional (2D) bounded domains. Applying delicate…

Analysis of PDEs · Mathematics 2024-06-19 Xin Zhong

In this paper, we establish new $L^p$ gradient estimates of the solutions in order to discuss Cauchy problem for the full compressible magnetohydrodynamic(MHD) systems in $\mathrm{R}^3$. We use the "$\rm{div}-\rm{curl}$" decomposition…

Analysis of PDEs · Mathematics 2022-08-15 Chuanbao Wang , Fei Chen , Shuai Wang

We construct sequences of `expander manifolds' and we use them to show that there is a complete connected 2-dimensional Riemannian manifold with discontinuous isoperimetric profile, answering a question of Nardulli and Pansu. Using expander…

Differential Geometry · Mathematics 2019-07-23 Panos Papasoglu , Eric Swenson

This article establishes estimates on the dimension of the global attractor of the two-dimensional rotating Navier-Stokes equation for viscous, incompressible fluids on the $\beta$-plane. Previous results in this setting by M.A.H.…

Analysis of PDEs · Mathematics 2025-03-07 Aseel Farhat , Anuj Kumar , Vincent R. Martinez

In this paper, we construct an iterated function system on the line consisting of two bi-Lipschitz contractions whose attractor has distinct lower, Hausdorff, lower box, upper box, and Assouad dimensions, thereby providing negative answers…

Dynamical Systems · Mathematics 2025-09-29 Simon Baker , Amlan Banaji , De-Jun Feng , Chun-Kit Lai , Ying Xiong

It is shown that for every multidimensional metric in the multiply warped product form $\bar{M} = K\times_{f_1} M_1\times_{f_2}M_2$ with warp functions $f_1$, $f_2$, associated to the submanifolds $M_1$, $M_2$ of dimensions $n_1$, $n_2$…

General Relativity and Quantum Cosmology · Physics 2016-10-20 F. Gholami , F. Darabi , A. Haji-Badali

Let $M$ be a complete Sasakian sub-Riemannian $3$-manifold of constant Webster scalar curvature $\kappa$. For any point $p\in M$ and any number $\lambda\in\mathbb{R}$ with $\lambda^2+\kappa>0$, we show existence of a $C^2$ spherical surface…

Differential Geometry · Mathematics 2015-06-24 Ana Hurtado , César Rosales

We consider flux vacua attractor equations in type IIA string theory compactified on generalized geometries with orientifold projections. The four-dimensional N=1 superpotential in this compactification can be written as the sum of the…

High Energy Physics - Theory · Physics 2009-05-29 Tetsuji Kimura