Triples of circle-pencils forming a hexagonal threeweb in \(E^ 2\) (Q1123402)
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scientific article; zbMATH DE number 4109493
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Triples of circle-pencils forming a hexagonal threeweb in \(E^ 2\) |
scientific article; zbMATH DE number 4109493 |
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Triples of circle-pencils forming a hexagonal threeweb in \(E^ 2\) (English)
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1989
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The problem of determination of all triples of circle-pencils which form a hexagonal 3-web was considered as difficult by Blaschke. This problem is completely solved here by examining all the possibilities for the three circle-pencils: elliptic, hyperbolic, parabolic, given by base points or null-circles. The special cases when some base point are coincident are proved, too.
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circle-pencils
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hexagonal 3-web
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