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scientific article; zbMATH DE number 2110524
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 2110524 |
Statements
26 October 2004
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topology of the Universe
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Euclidean (flat), spherical (elliptic), hyperbolic 2-dimensional geometries
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topological classification
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