Donald John Lewis (25 January 1926 – 25 February 2015), better known as D.J. Lewis, was an American

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

specializing in

number theory Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic function, integer-valued functions. German mathematician Carl Friedrich Gauss (1777� ...

. Lewis received his PhD in 1950 at the

University of Michigan , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

under supervision of Richard Dagobert Brauer, and subsequently was an NSF fellow at the

Institute for Advanced Study The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent scholar ...

in Princeton (1952–1953), an NSF senior fellow (1959–1961), a senior visiting fellow at

Cambridge University , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...

(1965, 1969), a visiting fellow at

Oxford University Oxford () is a city in England. It is the county town and only city of Oxfordshire. In 2020, its population was estimated at 151,584. It is north-west of London, south-east of Birmingham and north-east of Bristol. The city is home to the ...

(1976), and Humboldt Awardee (1980, 1983). He chaired the Department of Mathematics at the University of Michigan (1984-1994), and served as director of the Division of Mathematical Sciences at the

National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National I ...

(NSF). He was long active in the

American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...

(AMS), and in 1995 received its Distinguished Public Service Award.

References

* ''Notices of the American Mathematical Society'', volume 42, number 6 (June 1995) 20th-century American mathematicians 21st-century American mathematicians Number theorists University of Michigan alumni University of Michigan faculty 1926 births 2015 deaths {{US-mathematician-stub