Articles with "chemotaxis system" as a keyword



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Stabilization in a high‐dimensional chemotaxis system involving arbitrary superlinear degradation

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Published in 2021 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.7503

Abstract: The chemotaxis‐consumption system with generalized logistic source ut=Δu−∇·(uS(x,u,v)·∇v)+λu−μuα,x∈Ω,t>0,vt=Δv−uv,x∈Ω,t>0, is considered under homogeneous Neumann boundary conditions in a bounded smooth domain Ω⊂ℝn(n≥1) with suitably regular positive initial data. Here λ, μ > 0, α > 1 and S∈C2(Ω¯×[0,∞)2;ℝn×n) is a given… read more here.

Keywords: chemotaxis system; system; stabilization high; chemotaxis ... See more keywords
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Spiky Steady States of a Chemotaxis System with Singular Sensitivity

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Published in 2018 at "Journal of Dynamics and Differential Equations"

DOI: 10.1007/s10884-017-9621-3

Abstract: This paper is concerned with the steady state problem of a chemotaxis model with singular sensitivity function in a one dimensional spatial domain. Using the chemotactic coefficient $$\chi $$χ as the bifurcation parameter, we perform… read more here.

Keywords: states chemotaxis; singular sensitivity; steady states; chemotaxis system ... See more keywords
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Boundedness in a full parabolic two-species chemotaxis system

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Published in 2017 at "Comptes Rendus Mathematique"

DOI: 10.1016/j.crma.2016.10.024

Abstract: Abstract This paper is concerned with the two-species chemotaxis system { u t = △ u − ∇ ⋅ ( u χ 1 ( w ) ∇ w ) + μ 1 u ( 1… read more here.

Keywords: boundedness full; system; chemotaxis system; species chemotaxis ... See more keywords
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A new result on existence of global bounded classical solution to a attraction-repulsion chemotaxis system with logistic source

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Published in 2021 at "Journal of Differential Equations"

DOI: 10.1016/j.jde.2021.06.040

Abstract: Abstract This paper concerns the existence of bounded classical solutions to the attraction-repulsion chemotaxis system with logistic source (⋆) { u t = Δ u − χ ∇ ⋅ ( u ∇ v ) +… read more here.

Keywords: attraction repulsion; repulsion chemotaxis; chemotaxis system; bounded classical ... See more keywords
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An attraction-repulsion chemotaxis system with nonlinear productions

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Published in 2020 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2019.123703

Abstract: Abstract This paper studies the semilinear attraction-repulsion chemotaxis system with nonlinear productions and logistic source: u t = Δ u − χ ∇ ⋅ ( u ∇ v ) + ξ ∇ ⋅ ( u… read more here.

Keywords: nonlinear productions; repulsion chemotaxis; attraction repulsion; chemotaxis system ... See more keywords
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A chemotaxis system with signal-dependent motility, indirect signal production and generalized logistic source: Global existence and asymptotic stabilization

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Published in 2020 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2020.124108

Abstract: Abstract This work considers a chemotaxis system with signal-dependent motility in a smooth bounded domain Ω ⊂ R n . If λ ∈ R , μ > 0 and l > max ⁡ { n… read more here.

Keywords: system; signal dependent; chemotaxis system; system signal ... See more keywords
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Finite-time blow-up in the three-dimensional fully parabolic attraction-dominated attraction-repulsion chemotaxis system

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Published in 2021 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2021.125409

Abstract: Abstract We show that the attraction-repulsion chemotaxis system { u t = Δ u − χ ∇ ⋅ ( u ∇ v 1 ) + ξ ∇ ⋅ ( u ∇ v 2 ) ∂… read more here.

Keywords: finite time; attraction repulsion; repulsion chemotaxis; chemotaxis system ... See more keywords
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Global existence of bounded solutions for a quasilinear chemotaxis system with logistic source

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Published in 2019 at "Nonlinear Analysis: Real World Applications"

DOI: 10.1016/j.nonrwa.2018.09.020

Abstract: Abstract In this paper, we deal with the chemotaxis system with logistic source under homogeneous Neumann boundary conditions in a bounded convex domain with smooth boundary. Under appropriate regularity assumptions on the initial data, by… read more here.

Keywords: logistic source; system; chemotaxis system; system logistic ... See more keywords
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The switch complex ArlCDE connects the chemotaxis system and the archaellum

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Published in 2020 at "Molecular Microbiology"

DOI: 10.1111/mmi.14527

Abstract: Cells require a sensory system and a motility structure to achieve directed movement. Bacteria and archaea possess rotating filamentous motility structures that work in concert with the sensory chemotaxis system. This allows microorganisms to move… read more here.

Keywords: system; chemotaxis system; switch complex; system archaellum ... See more keywords
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Boundedness in a quasilinear two-species chemotaxis system with consumption of chemoattractant

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Published in 2019 at "Electronic Journal of Qualitative Theory of Differential Equations"

DOI: 10.14232/ejqtde.2019.1.31

Abstract: This paper deals with a two-species chemotaxis system  ut = ∇ · (D1(u)∇u)−∇ · (uχ1(w)∇w) + μ1u(1− u− a1v), x ∈ Ω, t > 0, vt = ∇ · (D2(v)∇v)−∇ · (vχ2(w)∇w) + μ2v(1−… read more here.

Keywords: system; quasilinear two; boundedness quasilinear; chemotaxis system ... See more keywords

Improvement of conditions for boundedness in a fully parabolic chemotaxis system with nonlinear signal production

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Published in 2021 at "Comptes Rendus Mathematique"

DOI: 10.5802/crmath.148

Abstract: This paper deals with the chemotaxis system with nonlinear signal secretion { ut =∇· (D(u)∇u −S(u)∇v), x ∈Ω, t > 0, vt =∆v − v + g (u), x ∈Ω, t > 0, under homogeneous… read more here.

Keywords: improvement conditions; nonlinear signal; chemotaxis system; system nonlinear ... See more keywords