The projective line over a ring which is direct product of commutative fields (Q1899082)
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scientific article; zbMATH DE number 802366
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The projective line over a ring which is direct product of commutative fields |
scientific article; zbMATH DE number 802366 |
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The projective line over a ring which is direct product of commutative fields (English)
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19 June 1996
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The authors use distance relations to give a characterization of the group \(\text{PGL}_2(R)\) in its natural action on the projective line \(P(R)\), where \(R\) is a direct product of commutative fields (generalizing a theorem of Petkantschin and Tits). They also give an application to chain geometries.
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chain geometry
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pojective group
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projective line
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