On the Gauss map of embedded minimal tubes

Details On the Gauss map of embedded minimal tubes On the Gauss map of embedded minimal tubes

2009-03-02

arxiv.org/abs/0903.0228v1

Note di Matematica, 19(1999), no. 1, 7-17

Mathematics

Differential Geometry

Scientific paper

10.1285/i15900932v19n1p7

A surface is called a tube if its level-sets with respect to some coordinate function (the axis of the surface) are compact. Any tube of zero mean curvature has an invariant, the so-called flow vector. We study how the geometry of the Gaussian image of a higher-dimensional minimal tube M is controlled by the angle alpha(M) between the axis and the flow vector of M. We prove that the diameter of the Gauss image of M is at least 2alpha(M). As a consequence we derive an estimate on the length of a two-dimensional minimal tube M in terms of alpha(\M) and the total Gaussian curvature of M.

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