论文标题

Dupin Cyclidic Systems几何重新审视

Dupin cyclidic systems geometrically revisited

论文作者

Szewieczek, Gudrun

论文摘要

Darboux提供了Dupin Cyclidic系统的诱导指标,即带有dupin cyclides和Spheres作为坐标表面的正交坐标系统。在这里,我们采取更加几何的观点,并讨论如何通过适当地演变出初始圆或杜宾辣椒来获得Dupin Cyclides和Lamé家族。这种方法表明,这些Lamé家族以各种空间形式的平行表面给出。

The induced metrics of Dupin cyclidic systems, that is, orthogonal coordinate systems with Dupin cyclides and spheres as coordinate surfaces, were provided by Darboux. Here we take a more geometric point of view and discuss how Dupin cyclides and Lamé families of Dupin cyclidic systems can be obtained by suitably evolving an initial circle or a Dupin cyclide, respectively. This approach reveals that those Lamé families are given by parallel surfaces in various space forms.

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