Classical solutions to a moving boundary problem for an elliptic-parabolic system
Classical solutions to a moving boundary problem for an elliptic-parabolic system
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DOI:
10.4171/ifb/96
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发表时间:
2004-06
影响因子:
1
通讯作者:
J. Escher
中科院分区:
文献类型:
--
作者:
J. Escher
In this paper we investigate a simple model describing in vivo cancer growth for a single tumor. The model comprises a reaction-diffusion equation describing the evolution of the nutrient concentration, denoted by u, and an elliptic equation for the internal pressure, denoted by p, in the tissue. The cell proliferation rate is denoted by f(u), wheref : R ! R is assumed to be smooth. Typically, this proliferation rate f is assumed to be linear or of logistic type (cf. [6, p. 157] and [7, pp. 190, 193]). A polynomial proliferation rate is proposed in the Appendix of [16]. At time t the tumor occupies the domain(t) with the moving boundary(t) . In dimensionless formp and u satisfy the equations