A problem of Ulam on planar graphs (Q1156811)
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scientific article; zbMATH DE number 3735842
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A problem of Ulam on planar graphs |
scientific article; zbMATH DE number 3735842 |
Statements
A problem of Ulam on planar graphs (English)
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1981
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countable planar graph
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