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arXiv 1601.05992math.AP
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具详细平衡条件的非线性反应扩散方程组的显式指数收敛性

Explicit exponential convergence to equilibrium for nonlinear reaction-diffusion systems with detailed balance condition

Klemens Fellner, Bao Quoc Tang

摘要:

研究了由化学反应网络产生的质量作用反应扩散系统的平衡收敛性。所考虑的反应网络被假定为满足详细的平衡条件,没有边界平衡。我们提出了一种通用的方法,基于所谓的熵的方法,这是能够量化与明确计算率的熵泛函的衰减的熵熵耗散不等式的基础上的整体的守恒律的系统。因此,以下收敛到唯一的详细平衡平衡明确可计算的收敛速度。一般的方法是进一步详细的两个重要的示例系统:一个单一的可逆反应,涉及任意数量的化学物质和链的两个可逆反应所产生的酶反应。

英文摘要:

The convergence to equilibrium of mass action reaction-diffusion systems arising from networks of chemical reactions is studied. The considered reaction networks are assumed to satisfy the detailed balance condition and have no boundary equilibria. We propose a general approach based on the so-called entropy method, which is able to quantify with explicitly computable rates the decay of an entropy functional in terms of an entropy entropy-dissipation inequality based on the totality of the conservation laws of the system. As a consequence follows convergence to the unique detailed balance equilibrium with explicitly computable convergence rates. The general approach is further detailed for two important example systems: a single reversible reaction involving an arbitrary number of chemical substances and a chain of two reversible reactions arising from enzyme reactions.

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