Boundary layers in a semilinear parabolic problem

Boundary layers in a semilinear parabolic problem
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半线性抛物线问题中的边界层

DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
D. Salazar
D. Salazar
中科院分区:
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文献类型:
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作者:
J. Hale;D. Salazar

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.研究了一类具有空间依赖反应项的反应锡永方程的奇摄动问题。我们比较了边界层与内层的存在对定常解的存在性和稳定性的影响。特别是,我们表明,相关的特征值是不同的数量级的两种层。其他的边界层非常相似。我们首先研究φ 1的情况,然后处理任何可能的Dirichlet边界条件。
. We study a singular perturbation problem for a certain type of reaction diffu- sion equation with a space-dependent reaction term. We compare the effect that the presence of boundary layers versus internal layers has on the existence and stability of stationary solutions. In particular, we show that the associated eigenvalues are of different orders of magnitude for the two kinds of layers. other boundary layers in very similar. We first study the case on φ 1 and take care of any possible Dirichlet boundary condition afterward.