Energy-type estimates and global solvability in a two-dimensional chemotaxis–haptotaxis model with remodeling of non-diffusible attractant
Energy-type estimates and global solvability in a two-dimensional chemotaxis–haptotaxis model with remodeling of non-diffusible attractant
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重构非扩散引诱剂的二维趋化-趋触模型中的能量类型估计和全局可解性
DOI:
10.1016/j.jde.2014.04.014
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发表时间:
2014-08
影响因子:
2.4
通讯作者:
Michael Winkler
中科院分区:
文献类型:
--
作者:
Youshan Tao;Michael Winkler
This paper deals with the coupled chemotaxis–haptotaxis model {u t= Δ u− χ∇⋅(u∇ v)− ξ∇⋅(u∇ w)+ μ u (1− u− w), x∈ Ω, t> 0, 0= Δ v+ u− v, x∈ Ω, t> 0, w t=− v w+ η w (1− w− u), x∈ Ω, t> 0, which was initially proposed by Chaplain and Lolas (2006)[10] to describe the interactions between cancer cells, the matrix degrading enzyme and the host tissue in a process of cancer cell invasion of tissue (extracellular matrix). Here, Ω⊂ R 2 is a bounded domain with smooth boundary, and χ, ξ, μ and η are positive parameters. As compared to previous mathematical studies, the novelty here consists of allowing for positive values of η, reflecting processes of self-remodeling of the extracellular matrix. Under zero-flux boundary conditions, it is shown that for any sufficiently smooth initial data (u 0, w 0) satisfying first-order compatibility conditions, the model admits a unique global smooth solution. A crucial ingredient in the proof is an energy-like inequality which, given T> 0, yields boundedness of u (⋅, t) in L log L (Ω). This serves as a starting point for a bootstrap argument used to derive higher regularity estimates sufficient for global extensibility of solutions.
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影响因子:
1.4
作者:
G. Liţcanu;C. Morales-Rodrigo
通讯作者:
G. Liţcanu;C. Morales-Rodrigo
DOI:
10.1137/s0036141001385046
发表时间:
2002
期刊:
SIAM J. Math. Anal.
影响因子:
--
作者:
M. Fontelos;A. Friedman;Bei Hu
通讯作者:
M. Fontelos;A. Friedman;Bei Hu
影响因子:
22.1
作者:
B. Perthame
通讯作者:
B. Perthame
DOI:
10.1016/s0022-247x(02)00147-6
发表时间:
2002-08-01
影响因子:
1.3
作者:
Friedman, A;Tello, JI
通讯作者:
Tello, JI
DOI:
10.1137/100802943
发表时间:
2011-03
期刊:
SIAM J. Math. Anal.
影响因子:
--
作者:
Youshan Tao;M. Winkler
通讯作者:
Youshan Tao;M. Winkler