Special Session 81: Reaction-(cross-)diffusion models in mathematical biology

Global well-posedness for the 2D chemotaxis-Euler system with logistic source for large initial data

Qian Zhang
Hebei University
Peoples Rep of China
Co-Author(s):    Peiguang Wang
Abstract:
In this paper, the two-dimensional incompressible chemotaxis-Euler system with logical source is studied as following: \begin{align} \nonumber\,\, \left\{ \begin{aligned} &n_{t}+u\cdot\nabla n=\Delta n-\nabla\cdot(n\nabla c)+n-n^3,\ &c_{t}+u\cdot\nabla c=\Delta c-nc,\ &u_{t}+u\cdot\nabla u+\nabla P=-n\nabla\phi,\ &\nabla\cdot u=0. \end{aligned} \right. \end{align} By taking advantage of a coupling structure of the equations and using a scale decomposition technique, the global existence and uniqueness of weak solutions to the above system for large initial data is obtained.