Kenneth I. Appel
1932-
American mathematician known for his work in topology, the branch of mathematics that explores certain properties of geometric figures. In 1976 he solved the four-color problem,...
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The American mathematician Kenneth I. Appel was born in Brooklyn, New York on October 8, 1932. He earned a B.S. degree from Queens College in 1953, then served in the U.S. Army for two years following...
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Kenneth I. Appel
Kenneth I. Appel