Motions in Einstein's cylinder universe (Q1321689)
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scientific article; zbMATH DE number 558730
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Motions in Einstein's cylinder universe |
scientific article; zbMATH DE number 558730 |
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Motions in Einstein's cylinder universe (English)
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31 October 1994
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The author characterizes the motions \(\varphi\) of the Einstein cylinder universe \(C^ n\) by the functional equation \(f(x,y)= f(\varphi(x), \varphi(y))\) for all \(x,y\in C^ n\) where \(f(x,y)= (\text{arc cos}(\sum_{i=1}^ n x_ i y_ i))^ 2- (x_{n+1}- y_{n+1})^ 2\).
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equations of motion
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Einstein cylinder universe
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0.8498763
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0.8476486
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0.8334184
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0.8317459
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0.8289774
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0.82835853
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0.82783115
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0.82466453
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