“Sphere Embedding”的概念、定义、习题解题方法及翻译-数学辞典

单词

Sphere Embedding

释义

Sphere Embedding

A 4-sphere has Positive Curvature, with

(1)

(2)

Since

(3)

(4)

To stay on the surface of the sphere,

With the addition of the so-called expansion parameter, this is the Robertson-Walker line element.

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