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In this paper, we investigate the existence of a global classical solution to 3D Cauchy problem of the isentropic compressible Navier-Stokes equations with large initial data and vacuum. Precisely, when the far-field density is vacuum…

Analysis of PDEs · Mathematics 2015-07-07 Xiaofeng Hou , Hongyun Peng , Changjiang Zhu

In this paper we study the Navier-Stokes equations with a Navier-type boundary condition that has been proposed as an alternative to common near wall models. The boundary condition we study, involving a linear relation between the…

Analysis of PDEs · Mathematics 2007-05-23 L. C. Berselli , M. Romito

The subject of the paper is the Cauchy problem for the wave equation in a space-time cylinder $\Omega\times{\mathbb R}$, $\Omega\subset{\mathbb R}^2$, with the data on the surface $\partial\Omega\times I$, where $I$ is a finite time…

Analysis of PDEs · Mathematics 2020-10-28 M. N. Demchenko

We investigate the global regularity problem for the three-dimensional incompressible Navier-Stokes equations restricted to axisymmetric flows in a finite cylinder $D = \{(r,\theta,x_3): 0 \le r \le 1, 0 \le \theta < 2\pi, 0 \le x_3 \le…

Analysis of PDEs · Mathematics 2026-05-19 Tsz-Lik Chan

In this paper, we prove the first existence result of weak solutions to the 3D Euler equation with initial vorticity concentrated in a circle and velocity field in $C([0,T],L^{2^-})$. The energy becomes finite and decreasing for positive…

Analysis of PDEs · Mathematics 2024-04-08 Francisco Gancedo , Antonio Hidalgo-Torné , Francisco Mengual

We prove existence of global regular axially-symmetric solutions to the Navier-Stokes equations in a cylindrical domain. We assume the periodic boundary conditions on the top and the bottom of the cylinder, but on the lateral part we assume…

Analysis of PDEs · Mathematics 2023-04-04 Wojciech M. Zajaczkowski

We look for the global in time solution of the Cauchy problem corresponding to the asymptotically flat spherically symmetric EVM system with small initial data. Using an estimate, we also prove that if solution of the system stated above…

General Relativity and Quantum Cosmology · Physics 2009-11-11 P. Noundjeu

We point out some criteria that imply regularity of axisymmetric solutions to Navier-Stokes equations. We show that boundedness of $\|{v_{r}}/{\sqrt{r^3}}\|_{L_2({\rm R}^3\times (0,T))}$ as well as boundedness of…

Analysis of PDEs · Mathematics 2019-10-02 Joanna Rencławowicz , Wojciech M. Zajączkowski

This paper is devoted to the study of the Cauchy problem for the stratified Navier-Stokes system in space dimension three. In the first part of the paper, we prove the existence of a unique global solution $(v_\nu,\rho_\nu)$ for this system…

Analysis of PDEs · Mathematics 2012-06-06 Samira Sulaiman

This work investigates the Cauchy problem for the classical Chemotaxis-Navier-Stokes (CNS) system in $\mathbb{R}^2$. We establish the global existence and uniqueness of strong, classical, and arbitrarily smooth solutions under large initial…

Analysis of PDEs · Mathematics 2025-06-30 Fan Xu , Bin Liu

Prior mathematical work of Constantin and Iyer (2008, 2011) has shown that incompressible Navier-Stokes solutions possess infinitely-many stochastic Lagrangian conservation laws for vorticity, backward in time, which generalize the…

Fluid Dynamics · Physics 2019-12-17 Gregory L. Eyink , Akshat Gupta , Tamer Zaki

A well-known unsolved problem (in the classical theory of fluid mechanics) is to identify a set of initial velocities, which may depend on the viscosity, the body forces and possibly the boundary of the fluid that will allow global in time…

Mathematical Physics · Physics 2007-05-23 Tepper L Gill , Woodford W. Zachary

We prove that the smooth solutions to the Cauchy problem for the Navier-Stokes equations with conserved mass, total energy and finite momentum of inertia loses the initial smoothness within a finite time in the case of space of dimension 3…

Analysis of PDEs · Mathematics 2009-06-04 Olga Rozanova

The aim of this note is to study the Cauchy problem for the 2D Euler equations under very low regularity assumptions on the initial datum. We prove propagation of regularity of logarithmic order in the class of weak solutions with $L^p$…

Analysis of PDEs · Mathematics 2024-10-10 Gennaro Ciampa , Gianluca Crippa , Stefano Spirito

We study the solution to the two-dimensional incompressible Navier-Stokes equations arising from a sum of Dirac masses in a particular co-rotating configuration. This configuration consists of a polygonal vortex crystal with or without a…

Analysis of PDEs · Mathematics 2026-02-27 Michele Dolce , Martin Donati

We study the Navier-Stokes equations with an extra eddy viscosity term in the whole space in three dimensions. We introduce a suitable regularized system for which we prove the existence of a regular solution defined for all time. We prove…

Analysis of PDEs · Mathematics 2017-06-01 Roger Lewandowski

We propose two different proofs of the fact that Oseen's vortex is the unique solution of the two-dimensional Navier-Stokes equation with a Dirac mass as initial vorticity. The first argument, due to C.E. Wayne and the second author, is…

Analysis of PDEs · Mathematics 2007-05-23 Isabelle Gallagher , Thierry Gallay , Pierre-Louis Lions

Some known results regarding the Euler and Navier-Stokes equations were obtained by different authors. Existence and smoothness of solutions for the Navier-Stokes equations in two dimensions have been known for a long time. Leray showed…

Analysis of PDEs · Mathematics 2011-09-27 A. Tsionskiy , M. Tsionskiy

We continue our work reported earlier (A. Muriel and M. Dresden, Physica D 101, 299, 1997) to calculate the time evolution of the one-particle distribution function. An improved operator formalism, heretofore unexplored, is used for uniform…

Mathematical Physics · Physics 2010-12-01 Amador Muriel

In this paper we are concerned with the initial boundary value problem of the 2, 3-D Navier-Stokes equations with mixed boundary conditions including conditions for velocity, static pressure, stress, rotation and Navier slip condition…

Analysis of PDEs · Mathematics 2016-11-28 Tujin Kim , Daomin Cao
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