Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains

The asymptotic behavior of solutions to nonlinear partial differential equations is an important tool for studying their long-term behavior. However, when studying the asymptotic behavior of solutions to nonlinear partial differential equations with delay, the delay factor <inline-formula><...

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Main Authors: Huanzhi Ge, Feng Du
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Mathematics
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Online Access:https://www.mdpi.com/2227-7390/13/2/222
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author Huanzhi Ge
Feng Du
author_facet Huanzhi Ge
Feng Du
author_sort Huanzhi Ge
collection DOAJ
description The asymptotic behavior of solutions to nonlinear partial differential equations is an important tool for studying their long-term behavior. However, when studying the asymptotic behavior of solutions to nonlinear partial differential equations with delay, the delay factor <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>u</mi><mo>(</mo><mi>t</mi><mo>+</mo><mi>θ</mi><mo>)</mo></mrow></semantics></math></inline-formula> in the delay term may lead to oscillations, hysteresis effects, and other phenomena in the solution, which increases the difficulty of studying the well-posedness and asymptotic behavior of the solution. This study investigates the global well-posedness and asymptotic behavior of solutions to the non-autonomous Navier–Stokes equations incorporating infinite delays. To establish global well-posedness, we first construct several suitable function spaces and then prove them using the Galekin approximation method. Then, by accurately estimating the number of determining nodes, we reveal the asymptotic behavior of the solution. The results indicate that the long-term behavior of a strong solution can be determined by its values at a finite number of nodes.
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spelling doaj-art-50b177dd439c4042818b474ac8bcfa092025-01-24T13:39:47ZengMDPI AGMathematics2227-73902025-01-0113222210.3390/math13020222Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded DomainsHuanzhi Ge0Feng Du1School of Information and Mathematics, Yangtze University, Jingzhou 434023, ChinaSchool of Mathematics and Physics Science, Jingchu University of Technology, Jingmen 448000, ChinaThe asymptotic behavior of solutions to nonlinear partial differential equations is an important tool for studying their long-term behavior. However, when studying the asymptotic behavior of solutions to nonlinear partial differential equations with delay, the delay factor <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>u</mi><mo>(</mo><mi>t</mi><mo>+</mo><mi>θ</mi><mo>)</mo></mrow></semantics></math></inline-formula> in the delay term may lead to oscillations, hysteresis effects, and other phenomena in the solution, which increases the difficulty of studying the well-posedness and asymptotic behavior of the solution. This study investigates the global well-posedness and asymptotic behavior of solutions to the non-autonomous Navier–Stokes equations incorporating infinite delays. To establish global well-posedness, we first construct several suitable function spaces and then prove them using the Galekin approximation method. Then, by accurately estimating the number of determining nodes, we reveal the asymptotic behavior of the solution. The results indicate that the long-term behavior of a strong solution can be determined by its values at a finite number of nodes.https://www.mdpi.com/2227-7390/13/2/222Navier–Stokes equationsinfinite delayglobal well-posednessasymptotic behaviordetermining nodeslong-time behavior
spellingShingle Huanzhi Ge
Feng Du
Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
Mathematics
Navier–Stokes equations
infinite delay
global well-posedness
asymptotic behavior
determining nodes
long-time behavior
title Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
title_full Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
title_fullStr Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
title_full_unstemmed Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
title_short Global Well-Posedness and Determining Nodes of Non-Autonomous Navier–Stokes Equations with Infinite Delay on Bounded Domains
title_sort global well posedness and determining nodes of non autonomous navier stokes equations with infinite delay on bounded domains
topic Navier–Stokes equations
infinite delay
global well-posedness
asymptotic behavior
determining nodes
long-time behavior
url https://www.mdpi.com/2227-7390/13/2/222
work_keys_str_mv AT huanzhige globalwellposednessanddeterminingnodesofnonautonomousnavierstokesequationswithinfinitedelayonboundeddomains
AT fengdu globalwellposednessanddeterminingnodesofnonautonomousnavierstokesequationswithinfinitedelayonboundeddomains