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- W2985056352 abstract "This paper is concerned with the well-posedness and large-time behavior of a two dimensional PDE-ODE hybrid chemotaxis system describing the initiation of tumor angiogenesis. We first transform the system via a Cole-Hopf type transformation into a parabolic-hyperbolic system and show that the solution of the transformed system converges to a constant equilibrium state as time tends to infinity. Finally we reverse the Cole-Hopf transformation and obtain the relevant results for the pre-transformed PDE-ODE hybrid system. In contrast to the existing related results, where continuous initial datum is imposed, we are able to prove the asymptotic stability for discontinuous initial data with large oscillations. The key ingredient in our proof is the use of so-called effective viscous flux, which enables us to obtain the desired energy estimates and regularity. The technique of effective viscous flux turns out to be a very useful tool to study chemotaxis systems with initial data having low regularity and was rarely (if not) used in the literature for chemotaxis models." @default.
- W2985056352 created "2019-11-22" @default.
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- W2985056352 date "2019-11-05" @default.
- W2985056352 modified "2023-10-16" @default.
- W2985056352 title "Global weak solutions and asymptotics of a singular PDE-ODE chemotaxis system with discontinuous data" @default.
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- W2985056352 doi "https://doi.org/10.48550/arxiv.1911.02157" @default.
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