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arXiv · 2101.10101

A minimising movement scheme for the $p$-elastic energy of curves

Simon Blatt·Nicole Vorderobermeier·Christopher Hopper
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Abstract

We prove short-time existence for the negative $L^2$-gradient flow of the $p$-elastic energy of curves via a minimising movement scheme. In order to account for the degeneracy caused by the energy's invariance under curve reparametrisations, we write the evolving curves as approximate normal graphs over a fixed smooth curve. This enables us to establish short-time existence and give a lower bound on the solution's lifetime that depends only on the $W^{2,p}$-Sobolev norm of the initial data.

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Simon Blatt, Nicole Vorderobermeier, Christopher Hopper. 2021-01-25. A minimising movement scheme for the $p$-elastic energy of curves. https://arxiv.org/abs/2101.10101

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