On the Kneser property of the three-dimensional Navier-Stokes equations with damping

Fuente: arXiv
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Main Authors: Pardo, Daniel, Valero, José, Giménez, Ángel
Format: Preprint
Published: 2025
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author Pardo, Daniel
Valero, José
Giménez, Ángel
author_facet Pardo, Daniel
Valero, José
Giménez, Ángel
contents In this paper, we study the connectedness and compactness of the attainability set of weak solutions to the three-dimensional Navier--Stokes equations with damping. Depending on the value of the parameter \b{eta}, which controls the damping term, we establish these results with respect to either the weak or the strong topology of the phase space. In the latter case, we also prove that the global attractor is connected. Additionally, we establish results concerning the regularity of the global attractor and provide a new proof of its existence for strong solutions.
format Preprint
id arxiv_https___arxiv_org_abs_2507_22510
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the Kneser property of the three-dimensional Navier-Stokes equations with damping
Pardo, Daniel
Valero, José
Giménez, Ángel
Analysis of PDEs
35B40, 35B41, 35K55, 35Q30, 37B25, 58C06
In this paper, we study the connectedness and compactness of the attainability set of weak solutions to the three-dimensional Navier--Stokes equations with damping. Depending on the value of the parameter \b{eta}, which controls the damping term, we establish these results with respect to either the weak or the strong topology of the phase space. In the latter case, we also prove that the global attractor is connected. Additionally, we establish results concerning the regularity of the global attractor and provide a new proof of its existence for strong solutions.
title On the Kneser property of the three-dimensional Navier-Stokes equations with damping
topic Analysis of PDEs
35B40, 35B41, 35K55, 35Q30, 37B25, 58C06
url https://arxiv.org/abs/2507.22510