arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.02294math.AP
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N-Peskin问题在Lipschitz类中的整体存在性

Global existence in the Lipschitz class for the N-Peskin problem

Francisco Gancedo, Rafael Granero-Belinchón, Stefano Scrobogna

摘要:

在本文中,我们研究了一个玩具模型的佩斯金问题,捕捉运动的完整佩斯金问题在正常方向上,并放弃切向弹性拉伸的贡献。该模型采用完全非线性标量轮廓方程的形式。Peskin问题是一个流体-结构相互作用问题,描述了浸入不可压缩Stokes流体中的弹性杆的运动。在临界Lipschitz空间中,我们证明了初值解的整体存在性.使用一个新的分解与取消属性,逐点方法使我们能够获得所需的估计在Lipschitz类。此外,我们进行能量估计,以获得该解决方案位于空间$L^2 \left( [0,T];H^{3/2} \right) $,以满足逐点的轮廓方程。

英文摘要:

In this paper we study a toy model of the Peskin problem that captures the motion of the full Peskin problem in the normal direction and discards the tangential elastic stretching contributions. This model takes the form of a fully nonlinear scalar contour equation. The Peskin problem is a fluid-structure interaction problem that describes the motion of an elastic rod immersed in an incompressible Stokes fluid. We prove global in time existence of solution for initial data in the critical Lipschitz space. Using a new decomposition together with cancellation properties, pointwise methods allow us to obtain the desired estimates in the Lipschitz class. Moreover, we perform energy estimates in order to obtain that the solution lies in the space $L^2 \left( [0,T];H^{3/2} \right) $ to satisfy the contour equation pointwise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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