No-singularity conjecture for embedded triod flow with positive length bounds

Let ΩR2\Omega\subset\mathbb R^2 be a bounded, strictly convex domain, and let Tt\mathbb T_t be the flow by curvature of an embedded triod in Ω\Omega. Assume that the lengths of the three curves are uniformly bounded below by a positive constant. No-singularity conjecture. The flow Tt\mathbb T_t does not develop singularities at all. This would follow from the translation conjecture for the relevant Type II blow-up limits and would establish global regularity under the stated lower length bound. The source gives no resolution of this conjecture.

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Primary source

Carlo Mantegazza, Matteo Novaga and Vincenzo Maria Tortorelli, “Motion by Curvature of Planar Networks”, arXiv:math/0302164 (2003).

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