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arXiv 2004.06460math.AP
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粘性极限为零的广义单相Stefan问题

A generalized one phase Stefan problem as a vanishing viscosity limit

Kelei Wang

摘要:

研究了一类描述化学反应界面或竞争物种空间分凝界面的非线性扩散方程的粘性消失极限,其中解的负部分的扩散速率收敛于零.与标准的单相Stefan问题一样,我们证明了解的正部分一致收敛于广义单相Stefan问题的解。然后利用该信息来确定负部分的极限方程,该极限方程是常微分方程。

英文摘要:

We study the vanishing viscosity limit of a nonlinear diffusion equation describing chemical reaction interface or the spatial segregation interface of competing species, where the diffusion rate for the negative part of the solution converges to zero. As in the standard one phase Stefan problem, we prove that the positive part of the solution converges uniformly to the solution of a generalized one phase Stefan problem. This information is then employed to determine the limiting equation for the negative part, which is an ordinary differential equation.

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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