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scientific article; zbMATH DE number 2160474
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 2160474 |
Statements
22 April 2005
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Nil geometry
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Heisenberg group
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cyclic centre
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projective collineation group
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Levi-Civita connection
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geodesic
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