Viggo Brun
Viggo Brun | |
|---|---|
 | |
| Born | 13 October 1885 Lier, Norway |
| Died | 15 August 1978 (aged 92) Drøbak, Norway |
| Citizenship | Norway |
| Known for | Brun's Theorem, Brun Sieve |
| Scientific career | |
| Fields | Number Theory |
Viggo Brun (13 October 1885 – 15 August 1978) was a Norwegian professor, mathematician and number theorist. [1]
Contributions
In 1915, he introduced a new method, based on
prime factors, and that all large even integers are the sum of two numbers with at most nine prime factors.[2]
He also showed that the sum of the reciprocals of
musical theory. He also served as praeses of the Royal Norwegian Society of Sciences and Letters in 1946.[3]
Biography
Brun was born at Lier in Buskerud, Norway. He studied at the University of Oslo and began research at the University of Göttingen in 1910. In 1923, Brun became a professor at the
Technical University in Trondheim and in 1946 a professor at the University of Oslo.[4]
He retired in 1955 at the age of 70 and died in 1978 (at 92 years-old) at Drøbak in Akershus, Norway.[5]
See also
- Brun's theorem
- Brun-Titchmarsh theorem
- Brun sieve
- Sieve theory
Fotnoter
References
- ^ "Viggo Brun". numbertheory.org. 18 June 2003. Retrieved January 1, 2017.
- ^ J J O'Connor; E F Robertson. "Viggo Brun". School of Mathematics and Statistics, University of St Andrews, Scotland. Archived from the original on 2017-01-16. Retrieved January 1, 2017.
- ISBN 82-573-0642-8.
- ^ "Viggo Brun". Store norske leksikon. Retrieved January 1, 2017.
- ^ Bent Birkeland. "Viggo Brun". Norsk biografisk leksikon. Retrieved January 1, 2017.
Other sources
- ISBN 0-12-318250-6. Gives an account of Brun's sieve.
- C.J. Scriba, Viggo Brun, Historia Mathematica 7 (1980) 1–6.
- C.J. Scriba, Zur Erinnerung an Viggo Brun, Mitt. Math. Ges. Hamburg 11 (1985) 271-290
External links
- Brun's Constant
- Brun's Pure Sieve
- Viggo Brun personal archive exists at NTN University Library Dorabiblioteket
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