Navier and Stokes meet Poincar\'e and Dulac

C Foias, L Hoang, JC Saut - arXiv preprint arXiv:1711.07184, 2017 - arxiv.org
This paper surveys various precise (long-time) asymptotic results for the solutions of the
Navier-Stokes equations with potential forces in bounded domains. It turns out that that the …

Velocity–vorticity–helicity formulation and a solver for the Navier–Stokes equations

MA Olshanskii, LG Rebholz - Journal of Computational Physics, 2010 - Elsevier
For the three-dimensional incompressible Navier–Stokes equations, we present a
formulation featuring velocity, vorticity and helical density as independent variables. We find …

Asymptotic expansion for solutions of the Navier–Stokes equations with non-potential body forces

LT Hoang, VR Martinez - Journal of Mathematical Analysis and …, 2018 - Elsevier
We study the long-time behavior of spatially periodic solutions of the Navier–Stokes
equations in the three-dimensional space. The body force is assumed to possess an …

On the regularity of the solutions to the 3D Navier–Stokes equations: a remark on the role of the helicity

LC Berselli, D Córdoba - Comptes Rendus Mathematique, 2009 - Elsevier
We show that if velocity and vorticity are orthogonal at each point (and they become
orthogonal fast enough) then solutions of the 3D Navier–Stokes equations are smooth. This …

Asymptotic expansions with exponential, power, and logarithmic functions for non-autonomous nonlinear differential equations

D Cao, L Hoang - Journal of Evolution Equations, 2021 - Springer
This paper develops further and systematically the asymptotic expansion theory that was
initiated by Foias and Saut in (Ann Inst H Poincaré Anal Non Linéaire, 4 (1): 1–47 1987). We …

The Navier–Stokes equations with body forces decaying coherently in time

L Hoang - Journal of Mathematical Analysis and Applications, 2024 - Elsevier
The long-time behavior of solutions of the three-dimensional Navier–Stokes equations in a
periodic domain is studied. The time-dependent body force decays, as time t tends to infinity …

On error analysis for the 3D Navier–Stokes equations in velocity-vorticity-helicity form

HK Lee, MA Olshanskii, LG Rebholz - SIAM Journal on Numerical Analysis, 2011 - SIAM
We present a rigorous numerical analysis and computational tests for the Galerkin finite
element discretization of the velocity-vorticity-helicity formulation of the equilibrium Navier …

Asymptotic expansions about infinity for solutions of nonlinear differential equations with coherently decaying forcing functions

L Hoang - arXiv preprint arXiv:2108.03724, 2021 - arxiv.org
This paper studies, in fine details, the long-time asymptotic behavior of decaying solutions of
a general class of dissipative systems of nonlinear differential equations in complex …

Time analyticity with higher norm estimates for the 2D Navier–Stokes equations

C Foias, MS Jolly, R Lan, R Rupam… - IMA Journal of …, 2015 - academic.oup.com
This paper establishes bounds on norms of all orders for solutions on the global attractor of
the 2D Navier–Stokes equations, complexified in time. Specifically, for periodic boundary …

Infinite series asymptotic expansions for decaying solutions of dissipative differential equations with non-smooth nonlinearity

D Cao, L Hoang, T Kieu - Qualitative Theory of Dynamical Systems, 2021 - Springer
We study the precise asymptotic behavior of a non-trivial solution that converges to zero, as
time tends to infinity, of dissipative systems of nonlinear ordinary differential equations. The …