Deriving Effective Models for Multiscale Systems via Evolutionary $$\varGamma $$-Convergence

Deriving Effective Models for Multiscale Systems via Evolutionary $$\varGamma $$-Convergence
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通过进化 $$varGamma $$-收敛推导多尺度系统的有效模型

DOI:
10.1007/978-3-319-28028-8_12
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发表时间:
2016
影响因子:
1.3
通讯作者:
A. Mielke
A. Mielke
中科院分区:
数学3区
文献类型:
--
作者:
A. Mielke

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我们讨论了最近建立的梯度系统的演化Gamma收敛理论可能推广到由梯度系统的扰动得到的非线性动力系统。因此,可以推导出多尺度图案形成系统的有效方程。我们的应用包括反应扩散系统的齐次化,图灵不稳定性的振幅方程的证明,以及从纯扩散到反应扩散的极限。这是通过推广基于能量耗散原理或演化变分估计的(VarGamma)极限方法来实现的。
We discuss possible extensions of the recently established theory of evolutionary \(\varGamma \)-convergence for gradient systems to nonlinear dynamical systems obtained by perturbation of a gradient systems. Thus, it is possible to derive effective equations for pattern forming systems with multiple scales. Our applications include homogenization of reaction-diffusion systems, the justification of amplitude equations for Turing instabilities, and the limit from pure diffusion to reaction-diffusion. This is achieved by generalizing the \(\varGamma \)-limit approaches based on the energy-dissipation principle or the evolutionary variational estimate.
慢扩散非线性反应扩散系统的二尺度均质化
DOI: 10.3934/nhm.2014.9.353
发表时间: 2014
期刊: Networks Heterog. Media
影响因子: --
作者:
Mielke;Alexander;Reichelt;Thomas;Marita
通讯作者: Marita