On the existence of global solutions for the 3D chemorepulsion system

Autor: Cieślak, Tomasz, Fuest, Mario, Hajduk, Karol, Sierżęga, Mikołaj
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
DOI: 10.4171/zaa/1747
Popis: In this paper, we give sufficient conditions for global-in-time existence of classical solutions for the fully parabolic chemorepulsion system posed on a convex, bounded three-dimensional domain. Our main result establishes global-in-time existence of regular nonnegative solutions provided that $\nabla\sqrt{u} \in L^4(0, T; L^2(\Omega))$. Our method is related to the Bakry--\'Emery calculation and appears to be new in this context.
Comment: 14 pages; incorporated referee comments and added alternative proof
Databáze: arXiv