Journal of Differential Equations ( IF 2.4 ) Pub Date : 2021-04-23 , DOI: 10.1016/j.jde.2021.04.020 Jiashan Zheng , Yuanyuan Ke
In this paper, we discuss the following chemotaxis-Stokes system with nonlinear diffusion and rotation with , where Ω is a bounded domain in , is a chemotactic sensitivity tensor satisfying and for all with and some nondecreasing function . We can show that if , then for any reasonably smooth initial data, the corresponding initial-boundary problem possesses a globally bounded weak solution. The result extends the previous global boundedness result for , and [15], and and [24]. Without using the conventional free-energy inequality see [15], [24], we use a new iterative bootstrap procedure to estimate the bounds on for , which is a crucial step to obtain our main result.
中文翻译:
具有非线性扩散和旋转的趋化Stokes系统的整体有界弱解
在本文中,我们讨论以下具有非线性扩散和旋转的趋化-斯托克斯系统 和 ,其中Ω是 , 是趋化敏感性张量满足 和 对所有人 和 和一些非递减功能 。我们可以证明,则对于任何合理平滑的初始数据,相应的初始边界问题都具有全局有界的弱解。结果扩展了先前的全局有界结果, 和 [15],以及 和 [24]。在不使用常规自由能不等式的情况下,请参见[15],[24],我们使用新的迭代自举程序来估计 为了 ,这是取得主要成果的关键一步。