期刊
GEOMETRY & TOPOLOGY
卷 24, 期 2, 页码 1019-1049出版社
GEOMETRY & TOPOLOGY PUBLICATIONS
DOI: 10.2140/gt.2020.24.1019
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We use a gradient flow to deform closed planar curves to curves with least variation of geodesic curvature in the L-2 sense. Given a smooth initial curve we show that the solution to the flow exists for all time and, provided the length of the evolving curve remains bounded, smoothly converges to a multiply covered circle. Moreover, we show that curves in any homotopy class with initially small L-3 parallel to k(s)parallel to(2)(2) enjoy a uniform length bound under the flow, yielding the convergence result in these cases.
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