Chemotaxis(-Fluid) Systems With Logarithmic Sensitivity And Slow Consumption: Global Generalized Solutions And Eventual Smoothness

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  • Mario Fuest

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OriginalspracheEnglisch
Seiten (von - bis)5177-5202
Seitenumfang26
FachzeitschriftDiscrete and Continuous Dynamical Systems - Series B
Jahrgang28
Ausgabenummer10
Frühes Online-DatumDez. 2022
PublikationsstatusVeröffentlicht - Okt. 2023

Abstract

We consider the system (Formula presented), in smooth bounded domains Ω ⊂ RN, N ∈ N, for given f ≥ 0, φ and complemented with initial and homogeneous Neumann–Neumann–Dirichlet boundary conditions, which models aerobic bacteria in a fluid drop. We assume f(0) = 0 and f0(0) = 0, that is, that f decays slower than linearly near 0, and construct global generalized solutions provided that either N = 2 or N > 2 and no fluid is present. If additionally N = 2, we next prove that this solution eventually becomes smooth and stabilizes in the large-time limit. We emphasize that these results require smallness neither of χ nor of the initial data.

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Chemotaxis(-Fluid) Systems With Logarithmic Sensitivity And Slow Consumption: Global Generalized Solutions And Eventual Smoothness. / Fuest, Mario.
in: Discrete and Continuous Dynamical Systems - Series B, Jahrgang 28, Nr. 10, 10.2023, S. 5177-5202.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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keywords = "Chemotaxis, eventual smoothness, fluid, generalized solutions, logarithmic sensitivity",
author = "Mario Fuest",
note = "Funding Information: The author would like to thank the Max Planck Institute for Mathematics in the Sciences for providing access to the article [6]. ",
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T1 - Chemotaxis(-Fluid) Systems With Logarithmic Sensitivity And Slow Consumption

T2 - Global Generalized Solutions And Eventual Smoothness

AU - Fuest, Mario

N1 - Funding Information: The author would like to thank the Max Planck Institute for Mathematics in the Sciences for providing access to the article [6].

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AB - We consider the system (Formula presented), in smooth bounded domains Ω ⊂ RN, N ∈ N, for given f ≥ 0, φ and complemented with initial and homogeneous Neumann–Neumann–Dirichlet boundary conditions, which models aerobic bacteria in a fluid drop. We assume f(0) = 0 and f0(0) = 0, that is, that f decays slower than linearly near 0, and construct global generalized solutions provided that either N = 2 or N > 2 and no fluid is present. If additionally N = 2, we next prove that this solution eventually becomes smooth and stabilizes in the large-time limit. We emphasize that these results require smallness neither of χ nor of the initial data.

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