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A parametric finite element method for fourth order geometric evolution equations
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DOI：10.1016/j.jcp.2006.07.026.png)
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摘要
En 中文
We present a finite element approximation of motion by minus the Laplacian of curvature and related flows. The proposed scheme covers both the closed curve case, and the case of curves that are connected via triple junctions. On introducing a parametric finite element approximation, we prove stability bounds and compare our scheme with existing approaches. It turns out that the new scheme has very good properties with respect to area conservation and the equidistribution of mesh points. We state also an extension of our scheme to Willmore flow of curves and discuss possible further generalizations. (c) 2006 Elsevier Inc. All rights reserved.
Keyword:
surface diffusion
Willmore flow
triple junctions
fourth order parabolic problem
parametric finite elements
schur complement
tangential movement
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期刊
IF:
3.8
论文数:
1.6W
被引数:
7.4W
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