John William Theodore Youngs, usually cited as J. W. T. Youngs and known as Ted Youngs (21 August 1910 in Bilaspur, India to 20 July 1970 in Santa Cruz, California), was an American mathematician and the son of a missionary. He completed his undergraduate study at Wheaton College and received his doctorate from Ohio State University in 1934 under Tibor Radó. He then taught for 18 years at Indiana University, where he chaired the mathematics department for eight years, and from 1964 he was a professor at the University of California, Santa Cruz, where he developed the mathematics faculty and chaired the academic senate. He worked in geometric topology and is famous for the Ringel-Youngs theorem, Ringel and Youngs's 1968 proof of the Heawood conjecture.
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Source Wikipedia: John William Theodore Youngs
Principal Result
Source Ringel-Youngs Theorem (Wikipedia)
Proofs Credited
Source Heawood conjecture (Wikipedia)
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1. Wikipedia: John William Theodore Youngs
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He completed his undergraduate study at Wheaton College and received his PhD from Ohio State University in 1934 under Tibor Radó. He then taught for 18 years at Indiana University, where for eight years he was chair of the mathematics department.
Ringel-Youngs Theorem (Wikipedia)
Principal Result: Ringel-Youngs Theorem, Lead sentence of the article on the resultQuote, Principal Result: Ringel-Youngs Theorem, Lead sentence of the article on the result
Then the years in which the twelve cases were settled, and by whom, are the following: 1954, Ringel: case 5 1961, Ringel: cases 3, 7, 10 1963, Terry, Welch, Youngs: cases 0, 4 1964, Gustin, Youngs: case 1 1965, Gustin: case 9 1966, Youngs: case 6 1967, Ringel, Youngs: cases 2, 8, 11 The last seven sporadic exceptions were settled as follows: 1967, Mayer: cases 18, 20, 23 1968, Ringel, Youngs: cases 30, 35, 47, 59, and the conjecture was proved.
Heawood conjecture (Wikipedia)
Proofs Credited: Ringel-Youngs Theorem, LeadQuote, Proofs Credited: Ringel-Youngs Theorem, Lead
The conjecture was formulated in 1890 by P.J. Heawood and proven in 1968 by Gerhard Ringel and J.W.T. Youngs.
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