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  • 學位論文

在四次圓紋曲面內的三個彼此相切球及其相關作圖

Three Mutually Tangential Spheres in Cyclide and Related Constructions

指導教授 : 全任重
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摘要


透過相對於空間中一個固定的反演球面反演一個甜甜圈(Ring Torus),我們可以得到四次圓紋曲面(Ring Cyclide)的幾何曲面;對於其他相關的四次圓紋曲面也將會被討論以及展示。 基於Steiner Porism以及三球定理,希望可以對於Steiner Porism的基本元素三個彼此相切的圓圈鏈(3-chain for Steiner),推廣到三個彼此相切球面鏈,進而得到並展示類似於Steiner Porism的幾何性質。

並列摘要


By means of inversion with respect to a sphere in space, torus will be transformed to surface, called cyclide. The parabolic cyclide will be shown in this thesis. Also, the deformation of Dupin cyclide illustrated by a symmetric Dupin horn cyclide will be demonstrated, too. Based on Steiner porism, Steiner annulus 3-chain(sphere case) is studied in this thesis. To obtain the geometric properties similiar to Steiner porism on surface of cyclide, we intend to focus on three mutually tangential spheres in Dupin ring cyclide. keywords: Inversion; Dupin cyclide; Steiner porism.

並列關鍵字

Inversion Steiner porism Cyclide

參考文獻


349{375, 1997.
Bibliography
[1] http ://mathworld:wolfram:com/Cyclide:html .
[2] http ://mathworld:wolfram:com/ParabolicCyclide:html .
[3] http ://mathworld:wolfram:com/StandardTori:html .

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