Bull. Korean Math. Soc. 2019; 56(6): 1539-1550
Online first article July 26, 2019 Printed November 30, 2019
https://doi.org/10.4134/BKMS.b181266
Copyright © The Korean Mathematical Society.
Sung-Ho Park
Hankuk University of Foreign Studies
We classify minimal surfaces in $\mathbb S^3$ which are foliated by circles and ruled constant mean curvature (cmc) surfaces in $\mathbb S^3$. First we show that minimal surfaces in $\mathbb S^3$ which are foliated by circles are either ruled (that is, foliated by geodesics) or rotationally symmetric (that is, invariant under an isometric $\mathbb S^1$-action which fixes a geodesic). Secondly, we show that, locally, there is only one ruled cmc surface in $\mathbb S^3$ up to isometry for each nonnegative mean curvature. We give a parametrization of the ruled cmc surface in $\mathbb S^3$ (cf. Theorem 3).
Keywords: minimal and cmc surfaces, circle foliation
MSC numbers: 53A10, 53C12
Supported by: This work was supported by Hankuk University of Foreign Studies Research Fund
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd