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The Steiner problem on a surface |
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| Authors: | Jiang Xin-yao |
| Institution: | Shanghai University of Technology, Shanghai |
| Abstract: | In this paper we generalize the Steiner problem on planes to general regular surfaces. The main result is
Theorem 1 If A,B,C are three points on a regular surface Σ and if another point P on Σ such that the sum of the lengths of
the smooth arcs
reaches the minimum, then the angles formed by every two arcs at P are all 120°. |
| Keywords: | epidemic model equilibrium global asymptotical stability limit system |
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