Article

# Helicoidal surfaces rotating/translating under the mean curvature flow

Geometriae Dedicata (Impact Factor: 0.47). 06/2011; DOI: 10.1007/s10711-012-9716-2

Source: arXiv

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**ABSTRACT:**As first observed in a 1989 paper by Korevaar, Kusner, and Solomon ("KKS"), constant mean curvature implies a homological conservation law for hypersurfaces in ambient spaces with Killing fields. In Theorem 3.5 here, we generalize that law by relaxing the topological restrictions assumed in [KKS], and by allowing a weighted mean curvature functional. We also prove a partial converse (Theorem 4.1). Roughly, it states that when flux is conserved along enough Killing fields, a hypersurface splits into two regions: one with constant (weighted) mean curvature, and one fixed by the given Killing fields. We demonstrate the use of our theory by using it to derive a first integral for twizzlers, i.e, helicoidal surfaces of constant mean curvature in euclidean 3-space.02/2013; - [Show abstract] [Hide abstract]

**ABSTRACT:**The height functions of K^(1/4)-flow translators in Euclidean space R^3 solve the unimodular Hessian equation. We explicitly and geometrically determine the moduli space of all helicoidal K^(1/4)-flow translators, which are generated from planar curves by the action of helicoidal groups.Comptes Rendus Mathematique 05/2012; · 0.48 Impact Factor - [Show abstract] [Hide abstract]

**ABSTRACT:**In the present article we obtain classification results and topological obstructions for the existence of translating solitons of the mean curvature flow.04/2014;

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