The evolution of immersed locally convex plane curves driven by anisotropic curvature flow

In this article, we study the evolution of immersed locally convex plane curves driven by anisotropic flow with inner normal velocity V=1αψ(x)καV=\frac{1}{\alpha }\psi \left(x){\kappa }^{\alpha } for α<0\alpha \lt 0 or α>1\alpha \gt 1, where x∈[0,2mπ]x\in \left[0,2m\pi ] is the tangential angl...

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Bibliographic Details
Main Authors: Wang Yaping, Wang Xiaoliu
Format: Article
Language:English
Published: De Gruyter 2022-08-01
Series:Advances in Nonlinear Analysis
Subjects:
Online Access:https://doi.org/10.1515/anona-2022-0245
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Summary:In this article, we study the evolution of immersed locally convex plane curves driven by anisotropic flow with inner normal velocity V=1αψ(x)καV=\frac{1}{\alpha }\psi \left(x){\kappa }^{\alpha } for α<0\alpha \lt 0 or α>1\alpha \gt 1, where x∈[0,2mπ]x\in \left[0,2m\pi ] is the tangential angle at the point on evolving curves. For −1≤α<0-1\le \alpha \lt 0, we show the flow exists globally and the rescaled flow has a full-time convergence. For α<−1\alpha \lt -1 or α>1\alpha \gt 1, we show only type I singularity arises in the flow, and the rescaled flow has subsequential convergence, i.e. for any time sequence, there is a time subsequence along which the rescaled curvature of evolving curves converges to a limit function; furthermore, if the anisotropic function ψ\psi and the initial curve both have some symmetric structure, the subsequential convergence could be refined to be full-time convergence.
ISSN:2191-950X