Edgar Krahn
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Edgar Krahn (October 1, 1894 – March 6, 1961) was an Estonian mathematician.[1]
Krahn was born in Sootage, district Laiuse, Estonia, as a member of the Baltic German minority. He died in Rockville, Maryland, USA.
Krahn studied at the University of Tartu and the University of Göttingen. He graduated at Tartu in 1918, received his doctoral degree at Göttingen in 1926, with Richard Courant as his advisor[2], and his habilitation took place at Tartu in 1928.
He is co-author of the Rayleigh-Faber-Krahn inequality[3].
Krahn worked in Estonia, Germany, the UK, and the USA in the following areas of pure and applied mathematics:
- Differential geometry
- Differential equations
- Bausparmathematik, which is distantly related to insurance mathematics
- Probability theory
- Gas dynamics
- Elasticity theory
[edit] References
- ^ Ü. Lumiste, J. Peetre (eds.), Edgar Krahn 1894 – 1961, IOS Press, 1994, ISBN 90-5199-168-1
- ^ Edgar Krahn at the Mathematics Genealogy Project
- ^ http://eom.springer.de/r/r130040.htm Rayleigh-Faber-Krahn inequality
