4-chromatic edge critical Grötzsch-Sachs graphs (Q1025526)
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scientific article; zbMATH DE number 5566728
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | 4-chromatic edge critical Grötzsch-Sachs graphs |
scientific article; zbMATH DE number 5566728 |
Statements
4-chromatic edge critical Grötzsch-Sachs graphs (English)
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19 June 2009
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planar graphs
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vertex coloring
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chromatic number
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4-critical graphs
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Grötzsch-Sachs graphs
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