Ivan M. Niven
|Born||October 25, 1915|
|Died||May 9, 1999(aged 83)|
|Known for||Niven number|
|Awards||Lester R. Ford Award (1970)|
|Doctoral advisor||Leonard Eugene Dickson|
|Institutions||University of Oregon|
|Doctoral students||Margaret Maxfield|
Ivan Morton Niven (October 25, 1915 – May 9, 1999) was a Canadian-American mathematician, specializing in number theory and known for his work on Waring's problem. He worked for many years as a professor at the University of Oregon, and was president of the Mathematical Association of America. He was the author of several books on mathematics.
Niven was born in Vancouver. He did his undergraduate studies at the University of British Columbia and was awarded his doctorate in 1938 from the University of Chicago. He was a member of the University of Oregon faculty from 1947 to his retirement in 1981. He was president of the Mathematical Association of America (MAA) from 1983 to 1984.
He died in 1999 in Eugene, Oregon.
Niven gave a proof that is irrational in 1947. Niven completed the solution of most of Waring's problem in 1944. This problem, based on a 1770 conjecture by Edward Waring, consists of finding the smallest number such that every positive integer is the sum of at most -th powers of positive integers. David Hilbert had proved the existence of such a in 1909; Niven's work established the value of for all but finitely many values of .
Niven received the University of Oregon's Charles E. Johnson Award in 1981. He received the MAA Distinguished Service Award in 1989.
- (1956) Irrational Numbers (Carus Mathematical Monographs, Number 11), Mathematical Association of America
- (1960) (with Herbert S. Zuckerman) An Introduction to the Theory of Numbers, Wiley
- (1961) Calculus: An Introductory Approach, Van Nostrand
- (1961) Numbers: Rational and Irrational, Random House
- (1963) Diophantine Approximations, Interscience
- (1965) Mathematics of Choice: How to Count Without Counting, Mathematical Association of America
- (1981) Maxima and Minima Without Calculus , Mathematical Association of America
- Donald Albers and G. L. Alexanderson. "A conversation with Ivan Niven", College Mathematics Journal, 22, 1991, pp. 371–402.
- Ivan M. Niven at the Mathematics Genealogy Project
- MAA presidents: Ivan Niven
- Niven, Ivan (1947), "A simple proof that π is irrational" (PDF), Bulletin of the American Mathematical Society, vol. 53, no. 6, p. 509, doi:10.1090/s0002-9904-1947-08821-2
- Erdős, P.; Niven, I. (1946), "Some properties of partial sums of the harmonic series", Bull. Amer. Math. Soc., 52 (4): 248–251, doi:10.1090/s0002-9904-1946-08550-x
- Niven, Ivan (1969). "Formal power series". Amer. Math. Monthly. 76 (8): 871–889. doi:10.2307/2317940. hdl:10338.dmlcz/120493. JSTOR 2317940.
- "AstDyS-2 Asteroids – Dynamic Site – (12513) Niven". newton.spacedys.com. Retrieved 3 April 2020.
- "Asteroids with Canadian connections" (PDF), Journal of the Royal Astronomical Society of Canada, 94 (2): 47, April 2000, archived from the original (PDF) on 2005-02-16
- Rosenbaum, R. A. (1959). "Review: Irrational Numbers by Ivan Niven. Carus Monograph, no. 11: New York, Wiley, 1956" (PDF). Bull. Amer. Math. Soc. 64 (2): 68–69. doi:10.1090/S0002-9904-1958-10170-6.
- Whiteman, Albert Leon (1961). "Review: An introduction to the theory of numbers, by Ivan Niven and Herbert S. Zuckerman". Bull. Amer. Math. Soc. 67 (4): 339–340. doi:10.1090/s0002-9904-1961-10603-4.
- Kaltenborn, H. S., Reviewed Work: Calculus: An Introductory Approach. by Ivan Niven The American Mathematical Monthly, vol. 69, no. 1, 1962, pp. 69–69. JSTOR, www.jstor.org/stable/2312762.
- Bishop, R. L., Reviewed Work: Calculus, An Introductory Approach by Ivan Niven Pi Mu Epsilon Journal, vol. 3, no. 5, 1961, pp. 236–236. JSTOR, www.jstor.org/stable/24338116.
- Goodstein, R. (1962). Calculus. An introductory approach. By I. Niven. Pp. 169. 36s. 1961. (D. van Nostrand, London). The Mathematical Gazette, 46(358), 333–333. doi:10.2307/3611795
- Cobb, R. (1967). Calculus: An Introductory Approach. 2nd Edition. (University Series in Undergraduate Mathematics.) By Ivan Niven. Pp. viii, 202. 46s. 6d. 1967. (D. Van Nostrand Co. Ltd.). The Mathematical Gazette, 51(378), 330–330. doi:10.2307/3612954