Allan Joseph Champneys Cunningham
Allan Joseph Champneys Cunningham (* 1842 in Delhi , † 1928 in London ) was a British mathematician.
He began his military career with the Bengali engineers of the East India Company . From 1871 to 1881 Cunningham was a math teacher at the Thomason Engineering School in Roorkee, India . When he returned to Great Britain in 1881, he continued teaching at the military academies in Chatham , Dublin and Shorncliffe . In 1891 he left the army, in which he last had the rank of lieutenant colonel (Lieutenant Colonel).
Cunningham spent the rest of his life studying number theory . He used his experience to solve factorization problems such as factoring Mersenne numbers 2 p -1 and Fermat numbers . He published the result of decades of calculations in several tables. According to him, Cunningham chains named.
His work will be continued in the Cunningham Project named after him .
literature
- AE Western, J. London Math. Soc. 317-318 (1928)
- Raymond Clare Archibald : Mathematical table makers , New York 1948, pp. 18–21 (bibliography)
Fonts
- Binomial Factorizations: Giving extensive congruence tables and factorization tables . London: Francis Hodgson, seven volumes until 1925
- A binary canon, showing residues of powers of 2 for divisors under 1000, and indices to residues , London: Hodgson and son, 1900
- Quadratic partitions . London: Hodgson 1904
He also published a book on hydraulic experiments at Thomason College in 1875 (then with the rank of captain) and a textbook on Applied Mechanics at Rourkee in 1876.
Web links
personal data | |
---|---|
SURNAME | Cunningham, Allan Joseph Champneys |
BRIEF DESCRIPTION | British mathematician |
DATE OF BIRTH | 1842 |
PLACE OF BIRTH | Delhi |
DATE OF DEATH | 1928 |
Place of death | London |