ON CONSTRUCTIONS OF MINIMAL SURFACES

초록

In the recent papers, S anchez-Reyes [Appl. Math. Model. 40 (2016), 1676{1682] descried the method for nding a minimal surface through a geodesic, and Li et al. [Appl. Math Model. 37 (2013), 6415{6424] studied the approximation of minimal surfaces with a geodesic from Dirichlet function. In the present article, we consider an isoparametric surface generated by Frenet frame of a curve introduced by Wang et al. [Comput. Aided Des. 36 (2004), 447-459], and give the necessary and su cient condition to satisfy both geodesic of the curve and minimality of the surface. From this, we construct minimal surfaces in terms of constant curvature and torsion of the curve. As a result, we present a new approach for constructions of the minimal surfaces from a prescribed closed geodesic and unclosed geodesic, and show some new examples of minimal surfaces with a circle and a helix as a geodesic. Our approach can be used in design of minimal surfaces from geodesics.

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