A note on Hornich's problem (Q1291136)
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scientific article; zbMATH DE number 1295483
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A note on Hornich's problem |
scientific article; zbMATH DE number 1295483 |
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A note on Hornich's problem (English)
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12 December 1999
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An upper bound is given for Hornich's problem, namely to determine the smallest number of nonoverlapping unit spheres which can block all the light rays starting from the center of a fixed one. The Dirichlet approximation theorem is applied.
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Hornich problem
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upper bound
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nonoverlapping unit spheres
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Dirichlet approximation theorem
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