Minimal surfaces in $S^3$ foliated by circles

Details Minimal surfaces in $S^3$ foliated by circles Minimal surfaces in $S^3$ foliated by circles

2010-03-02

arxiv.org/abs/1003.0548v1

Pacific Journal of Mathematics, Vol. 248, No. 2 (2010), 335--354

Mathematics

Differential Geometry

17 pages

Scientific paper

We deal with minimal surfaces in the unit sphere $S^3$, which are one-parameter families of circles. Minimal surfaces in $\R^3$ foliated by circles were first investigated by Riemann, and a hundred years later Lawson constructed examples of such surfaces in $S^3$. We prove that in $S^3$ there are only two types of minimal surfaces foliated by circles, crossing the principal lines at a constant angle. The first type surfaces are foliated by great circles, which are bisectrices of the principal lines, and we show that these minimal surfaces are the well-known examples of Lawson. The second type surfaces, which are new in the literature, are families of small circles, and the circles are principal lines. We give a constructive formula for these surfaces. An application to the theory of minimal foliated semi-symmetric hypersurfaces in $\R^4$ is given.

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