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 …

Long-time behaviour of solutions of superlinear systems of differential equations

L Hoang - Dynamical Systems, 2024 - Taylor & Francis
This paper establishes the precise asymptotic behaviour, as time t tends to infinity, for
nontrivial, decaying solutions of genuinely nonlinear systems of ordinary differential …

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 …

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 …

Behavior near the extinction time for systems of differential equations with sublinear dissipation terms

L Hoang - arXiv preprint arXiv:2211.17241, 2022 - arxiv.org
This paper is focused on the the behavior near the extinction time of solutions of systems of
ordinary differential equations with a sublinear dissipation term. Suppose the dissipation …

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 …

A new form of asymptotic expansion for non-smooth differential equations with time-decaying forcing functions

L Hoang - Differential Equations and Dynamical Systems, 2024 - Springer
This article is focused on the asymptotic expansions, as time tends to infinity, of solutions of
a system of ordinary differential equations with non-smooth nonlinear terms. The forcing …

Asymptotic expansions in a general system of decaying functions for solutions of the Navier–Stokes equations

D Cao, L Hoang - Annali di Matematica Pura ed Applicata (1923-), 2020 - Springer
We study the long-time dynamics of the Navier–Stokes equations in the three-dimensional
periodic domains with a body force decaying in time. We introduce appropriate systems of …

Long-time asymptotic expansions for Navier-Stokes equations with power-decaying forces

D Cao, L Hoang - Proceedings of the Royal Society of Edinburgh …, 2020 - cambridge.org
The Navier-Stokes equations for viscous, incompressible fluids are studied in the three-
dimensional periodic domains, with the body force having an asymptotic expansion, when …