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Immediate smoothing and global solutions for initial data in L1 × W1,2 in a Keller–Segel system with logistic terms in 2D
Proceedings of the Royal Society of Edinburgh Section A: Mathematics ( IF 1.3 ) Pub Date : 2020-09-02 , DOI: 10.1017/prm.2020.55 Johannes Lankeit
Proceedings of the Royal Society of Edinburgh Section A: Mathematics ( IF 1.3 ) Pub Date : 2020-09-02 , DOI: 10.1017/prm.2020.55 Johannes Lankeit
This paper deals with the logistic Keller–Segel model \[ \begin{cases} u_t = \Delta u - \chi \nabla\cdot(u\nabla v) + \kappa u - \mu u^2, \\ v_t = \Delta v - v + u \end{cases} \] in bounded two-dimensional domains (with homogeneous Neumann boundary conditions and for parameters χ, κ ∈ ℝ and μ > 0), and shows that any nonnegative initial data (u 0 , v 0 ) ∈ L 1 × W 1,2 lead to global solutions that are smooth in $\bar {\Omega }\times (0,\infty )$ .
中文翻译:
具有二维逻辑项的 Keller-Segel 系统中 L1 × W1,2 中初始数据的即时平滑和全局解决方案
本文处理逻辑 Keller-Segel 模型\[ \begin{cases} u_t = \Delta u - \chi \nabla\cdot(u\nabla v) + \kappa u - \mu u^2, \\ v_t = \Delta v - v + u \end{例} \] 在有界二维域中(具有齐次 Neumann 边界条件和参数 χ,κ ∈ ℝ 和μ > 0),并表明任何非负初始数据 (你 0 ,v 0 ) ∈大号 1 ×W 1,2 导致顺利进行的全球解决方案$\bar {\Omega }\times (0,\infty )$ .
更新日期:2020-09-02
中文翻译:
具有二维逻辑项的 Keller-Segel 系统中 L1 × W1,2 中初始数据的即时平滑和全局解决方案
本文处理逻辑 Keller-Segel 模型