An existence result to a strongly coupled degenerated system arising in tumor modeling. (English) Zbl 1173.34356

Summary: We consider a mathematical model to describe the growth of a vascular tumor including tumor cells, macrophages, and blood vessels. The resulting system of equations is reduced to a strongly \(2\times 2\) coupled nonlinear parabolic system of degenerate type. Assuming the initial data are far enough from zero, we prove existence of a global weak solution with finite entropy to the problem by using an approximation procedure and a time discrete scheme.


34K50 Stochastic functional-differential equations
92C99 Physiological, cellular and medical topics
35K65 Degenerate parabolic equations
35D05 Existence of generalized solutions of PDE (MSC2000)
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