Gerhard Ringel
(1919-2008)
German-American mathematician
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Gerhard Ringel (October 28, 1919 in Kollnbrunn, Austria – June 24, 2008 in Santa Cruz, California) was a German mathematician. He was one of the pioneers in graph theory and contributed significantly to the proof of the Heawood conjecture (now the Ringel-Youngs theorem), a mathematical problem closely linked with the Four Color Theorem.
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| Born |
28 October 1919 Kollnbrunn, Austria
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| Died |
24 June 2008 (aged 88) Santa Cruz, California
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| Zodiac | Scorpio |
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