Abstract
This article considers the following higher-dimensional quasilinear parabolic-parabolic-ODE chemotaxis system with generalized Logistic source and homogeneous Neumann boundary conditions
in a bounded domain Ω ⊂ Rn(n ≥ 2) with smooth boundary ∂Ω, where the diffusion coefficient D(u) and the chemotactic sensitivity function S(u) are supposed to satisfy D(u) ≥ M1(u + 1)−α and S(u) ≤ M2(u + 1)β, respectively, where M1, M2 > 0 and α, β ∈ R. Moreover, the logistic source f(u) is supposed to satisfy f(u) ≤ a — µuγ with µ > 0, γ ≥ 1, and a ≥ 0. As \(\alpha+2\beta<\gamma-1+\frac{2\gamma}{n}\), we show that the solution of the above chemotaxis system with sufficiently smooth nonnegative initial data is uniformly bounded.
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This work is supported by the Youth Doctor Science and Technology Talent Training Project of Xinjiang Uygur Autonomous Region (2017Q087).
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Tang, Q., Xin, Q. & Mu, C. Boundedness of the Higher-Dimensional Quasilinear Chemotaxis System with Generalized Logistic Source. Acta Math Sci 40, 713–722 (2020). https://doi.org/10.1007/s10473-020-0309-0
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DOI: https://doi.org/10.1007/s10473-020-0309-0