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arXiv 2101.06508math.APmath.DS
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生长势上反应扩散耦合PDE的双晶形状演化

Diffeomorphic shape evolution coupled with a reaction-diffusion PDE on a growth potential

Dai-Ni Hsieh, Sylvain Arguillère, Nicolas Charon, Laurent Younes

摘要:

本文研究了一个纵向形状转换模型,在该模型中,形状响应于根据平流反应扩散过程演化的内部生长势而变形。该模型扩展了考虑静态增长潜力的先前工作,即,初始增长势仅由同胚平流输送。我们专注于相应的耦合偏微分方程系统的数学研究,描述的联合动力学的运动域上的增长潜力的双态变换一起。具体地说,我们证明了该系统的解的唯一性和长期存在性与合理的初始和边界条件以及正则化的变形场。此外,我们提供了一些简单的模拟这种模型的情况下,各向同性的弹性材料在二维。

英文摘要:

This paper studies a longitudinal shape transformation model in which shapes are deformed in response to an internal growth potential that evolves according to an advection reaction diffusion process. This model extends prior works that considered a static growth potential, i.e., the initial growth potential is only advected by diffeomorphisms. We focus on the mathematical study of the corresponding system of coupled PDEs describing the joint dynamics of the diffeomorphic transformation together with the growth potential on the moving domain. Specifically, we prove the uniqueness and long time existence of solutions to this system with reasonable initial and boundary conditions as well as regularization on deformation fields. In addition, we provide a few simple simulations of this model in the case of isotropic elastic materials in 2D.

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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