Map Color Theorem
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| Google books | books.google.com |
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| Originally published | 1974 |
| Authors | Gerhard Ringel |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3075841 |
About Map Color Theorem
In 1890 P. J. Heawood [35] published a formula which he called the Map Colour Theorem. But he forgot to prove it. Therefore the world of mathematicians called it the Heawood Conjecture. In 1968 the formula was proven and therefore again called the Map Color Theorem. . . .