Title
A Combined Chemotaxis-haptotaxis System: The Role of Logistic Source.
Abstract
This paper deals with a 3 x 3 chemotaxis-haptotaxis system modeling cancer invasion. The model consists of a parabolic chemotaxis-haptotaxis partial differential equation (PDE) describing the evolution of tumor cell density, an elliptic PDE governing the evolution of proteolytic enzyme concentration, and an ordinary differential equation (ODE) modeling the proteolysis of extracellular matrix. In three space dimensions, the existence, uniqueness, and uniform-in-time boundedness of global classical solutions to the above system is proved for large mu > 0 by raising the a priori estimate of a solution from L(1)(Omega) to L(2)(Omega) and then to L(4)(Omega); in two space dimensions, the existence, uniqueness, and boundedness is proved for any mu > 0 by raising the a priori estimate of a solution in the following way: L(1)(Omega) -> L(3)(Q(T)) -> L(2)(Omega) -> L(4)(Q(T)) -> L(3)(Omega). The above-mentioned mu is the logistic growth rate of cancer cells, Omega subset of R(d) (d = 2 or 3) is a bounded domain, and Q(T) = Omega x (0, T). The central point of this paper is to develop new L(p)-estimate techniques for a 3 x 3 chemotaxis-haptotaxis system.
Year
DOI
Venue
2009
10.1137/090751542
SIAM JOURNAL ON MATHEMATICAL ANALYSIS
Keywords
Field
DocType
chemotaxis-haptotaxis,logistic source,global existence,uniform boundedness,cancer invasion model
Differential equation,Uniqueness,Ordinary differential equation,A priori estimate,Mathematical analysis,Uniform boundedness,Omega,Partial differential equation,Mathematics,Parabola
Journal
Volume
Issue
ISSN
41
4
0036-1410
Citations 
PageRank 
References 
5
1.31
4
Authors
2
Name
Order
Citations
PageRank
Youshan Tao1227.04
Mingjun Wang251.64