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As has been observed by Morse [1], any generic vector field v on a compact smooth manifold X with boundary gives rise to a stratification of the boundary by compact submanifolds , where . Our main observation is that this stratification re-flects the stratified convexity/concavity of the boundary ?with respect to the ?v-flow. We study the behavior of this stratification under deformations of the vector field v. We also investigate the restrictions that the existence of a convex/concave traversing ?v-flow imposes on the topology of X. Let be the orthogonal projection of on the tangent bundle of . We link the dynamics of theon the boundary with the property of in X being convex/concave. This linkage is an instance of more general phenomenon that we call “holography of traversing fields”—a subject of a different paper to follow.
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篇名 Stratified Convexity &Concavity of Gradient Flows on Manifolds with Boundary
来源期刊 应用数学(英文) 学科 数学
关键词 MORSE Theory Gradient FLOWS CONVEXITY CONCAVITY MANIFOLDS with Boundary
年,卷(期) 2014,(17) 所属期刊栏目
研究方向 页码范围 2823-2848
页数 26页 分类号 O1
字数 语种
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研究主题发展历程
节点文献
MORSE
Theory
Gradient
FLOWS
CONVEXITY
CONCAVITY
MANIFOLDS
with
Boundary
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研究去脉
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期刊影响力
应用数学(英文)
月刊
2152-7385
武汉市江夏区汤逊湖北路38号光谷总部空间
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1878
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