Michael O'Nan, Date of Birth, Place of Birth, Date of Death
TweetMichael O'Nan
American mathematician
Date of Birth: 09-Aug-1943
Place of Birth: Fort Knox, Kentucky, United States
Date of Death: 31-Jul-2017
Profession: mathematician
Nationality: United States
Zodiac Sign: Leo 
About Michael O'Nan
- Michael Ernest O'Nan (August 9, 1943, Fort Knox, Kentucky – July 31, 2017, Princeton, New Jersey) was an American mathematician, specializing in group theory.O'Nan received his PhD in 1970 from Princeton University under Daniel Gorenstein with thesis A Characterization of the Three-Dimensional Projective Unitary Group over a Finite Field.
- He was a professor at Rutgers University.
- In 1976 he found strong evidence for the existence of a sporadic group, which Charles Sims constructed.
- The group is now named the O'Nan group after O'Nan.The O'Nan–Scott theorem in group theory is also named after O'Nan, who discovered it independently from Leonard Scott.
- It describes the maximal subgroups of the symmetric groups.
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