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arXiv 2101.11235math.AP
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具有任意多孔介质慢扩散的三维趋化性-Stokes模型的整体有界解

Global bounded solution in three-dimensional chemotaxis-Stokes model with arbitrary porous medium slow diffusion

Chunhua Jin

摘要:

本文研究了三维有界区域中具有零通量边界条件和无滑移边界条件的多孔介质慢扩散消耗趋化性Stokes模型。近十年来,人们对三维空间中趋化性-Stokes方程组的整体有界解进行了大量的研究。虽然一些重要的进展已经进行了一些文件中,如一些作者所提到的,确定一个最佳的条件m确保在三维框架中的全球有界性的问题仍然是一个公开的挑战。本文提出了一种新的估计方法,完整地证明了任意慢扩散情形的整体有界解的存在性,部分地回答了Winkler提出的公开问题.

英文摘要:

In this paper, we study the consumption-chemotaxis-Stokes model with porous medium slow diffusion in a three dimensional bounded domain with zero-flux boundary conditions and no-slip boundary condition. In recent ten years, many efforts have been made to find the global bounded solutions of chemotaxis-Stokes system in three dimensional space. Although some important progress has been carried out in some papers, as mentioned by some authors, the question of identifying an optimal condition on m ensuring global boundedness in the three-dimensional framework remains an open challenge. In the present paper, we put forward a new estimation technique, completely proved the existence of global bounded solutions for arbitrary slow diffusion case, and partially answered the open problem proposed by Winkler.

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