Gerhard Ringel (1924–2017) was an accomplished Austrian mathematician known primarily for his contributions to topology and combinatorial mathematics. He is particularly noted for his work in the field of graph theory and has made significant contributions to the study of maps on surfaces, as well as the development of concepts related to the colorability of graphs. Ringel is also recognized for the Ringel-Youngs theorem and had collaborations that further enriched the field of mathematical research.
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