Robert Daniel Carmichael
|Robert D. Carmichael|
March 1, 1879|
|Died||May 2, 1967(aged 88)|
|Institutions||University of Illinois
|Alma mater||Princeton University
|Doctoral advisor||G. D. Birkhoff|
|Doctoral students||John Cell
Robert Daniel Carmichael (March 1, 1879 – May 2, 1967) was an American mathematician.
Carmichael was born in Goodwater, Alabama. He attended Lineville College, briefly, and he earned his bachelor's degree in 1898, while he was studying towards his Ph.D. degree at Princeton University. Carmichael completed the requirements for his Ph.D. in mathematics in 1911. Carmichael's Ph.D. research in mathematics was done under the guidance of the noted American mathematician G. David Birkhoff, and it is considered to be the first significant American contribution to the knowledge of differential equations in mathematics.
Carmichael is known for his research in what are now called the Carmichael numbers (a subset of Fermat pseudoprimes, numbers satisfying properties of primes described by Fermat's Little Theorem although they are not primes), Carmichael's totient function conjecture, Carmichael's theorem, and the Carmichael function, all significant in number theory and in the study of the prime numbers. He found the smallest Carmichael number, 561, and over 50 years later, it was proven that there are infinitely many of them. Carmichael may have been the first to describe the Steiner system S(5,8,24), a structure often attributed to Ernst Witt.
|Wikisource has original works written by or about:
- The Theory of Relativity, 1.edition, New York: John Wiley & Sons, Inc., pp. 74, 1913.
- The Theory of Numbers, New York: John Wiley & Sons, Inc., pp. 94, 1914.
- Diophantine analysis, 1.edition, New York: John Wiley & Sons, Inc., pp. 118, 1915.
- The Theory of Relativity. 2.edition, New York: John Wiley & Sons, Inc., pp. 112, 1920.
- A Debate on the Theory of Relativity, with an introduction of William Lowe Bryan, Chicago: Open Court Pub. CO., pp. 154, 1927.
- The calculus, Robert D. Carmichael and James H. Weaver, Boston/New York: Ginn & company, pp. 345, 1927.
- The Logic of Discovery, Chicago/London: Open Court Publishing CO., pp. 280, 1930; Reprinted of Arno press, New York, 1975
- Mathematical Tables and Formulas, Robert D. Carmichael and Edwin R. Smith, Boston: Ginn & company, pp. 269, 1931; Reprint of Dover Publications, Inc., New York, 1962.
- The calculus, revised expenditure of Robert D. Carmichael, James H. Weaver and Lincoln La Paz, Boston/New York: Ginn & company, pp. 384, 1937.
- Introduction to the Theory of Groups of finite order, Boston/New York: Ginn & company, pp. 447, 1937; Reprint of Dover Publications, Inc., New York, 1956.
Notes and references
- For original papers on special theory of relativity see wikisource:Author:Robert Daniel Carmichael.
- Works by Robert D. Carmichael, at Project Gutenberg
- O'Connor, John J.; Robertson, Edmund F., "Robert Daniel Carmichael", MacTutor History of Mathematics archive, University of St Andrews.
- Robert Daniel Carmichael at the Mathematics Genealogy Project
- MAA presidents: Robert Daniel Carmichael