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arXiv · 1710.05890

Elastic curves and phase transitions

Tatsuya Miura
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Abstract

This paper is devoted to classical variational problems for planar elastic curves of clamped endpoints, so-called Euler's elastica problem. We investigate a straightening limit that means enlarging the distance of the endpoints, and obtain several new results concerning properties of least energy solutions. In particular we reach a first uniqueness result that assumes no symmetry. As a key ingredient we develop a foundational singular perturbation theory for the modified total squared curvature energy. It turns out that our energy has almost the same variational structure as a phase transition energy of Modica-Mortola type at the level of a first order singular limit.

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Tatsuya Miura. 2017-10-16. Elastic curves and phase transitions. https://doi.org/10.1007/s00208-019-01821-8

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