Isolas Versus Snaking of Localized Rolls

Isolas Versus Snaking of Localized Rolls
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Isolas 与局部卷的蛇行

DOI:
10.1007/s10884-017-9624-0
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发表时间:
2017
影响因子:
1.3
通讯作者:
Wheeler, Aric
Wheeler, Aric
中科院分区:
数学3区
文献类型:
--
作者:
Aougab, Tarik;Beck, Margaret;Carter, Paul;Desai, Surabhi;Sandstede, Björn;Stadt, Melissa;Wheeler, Aric

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我们分析了空间局部化的固定模式,表现出一个长的空间周期性的内部高原(称为本地化辊)的分叉图。在各种各样的情况下,这些分叉图由孤立点或交织的s形曲线组成,这些曲线通常被称为蛇形分支。这些图已被严格分析,通过连接的存在曲线的局部卷的分歧结构的前线,连接的轧辊平凡状态。以前的工作假设辊的稳定和不稳定流形定向。在这里,我们将这些结果的nonorientable的情况下,还讨论了拓扑障碍,防止蛇形,从而只允许孤立点发生。结果被应用到Swift-Hohenberg系统,我们表明,nonorientable辊图案不能蛇。
We analyze the bifurcation diagrams of spatially localized stationary patterns that exhibit a long spatially periodic interior plateau (referred to as localized rolls). In a wide variety of contexts, these bifurcation diagrams consist of isolas or of intertwined s-shaped curves that are commonly referred to as snaking branches. These diagrams have been rigorously analyzed by connecting the existence curves of localized rolls with the bifurcation structure of fronts that connect the rolls to the trivial state. Previous work assumed that the stable and unstable manifolds of rolls were orientable. Here, we extend these results to the nonorientable case and also discuss topological barriers that prevent snaking, thus allowing only isolas to occur. The results are applied to the Swift–Hohenberg system for which we show that nonorientable roll patterns cannot snake.
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