Germund Dahlquist
Germund Dahlquist | |
|---|---|
Royal Institute of Technology | |
| Doctoral advisor | Fritz Carlson Lars Hörmander |
| Other academic advisors | Harald Bohr |
| Doctoral students | |
Germund Dahlquist (16 January 1925 – 8 February 2005) was a Swedish mathematician known primarily for his early contributions to the theory of numerical analysis as applied to differential equations.
Dahlquist began to study mathematics at
occupation of Denmark during World War II) as a profound influence.[1]
He received the degree of
Matematikmaskinnämnden), working on (among other things) the early computer BESK, Sweden's first. During this time, he also worked with Carl-Gustaf Rossby
on early numerical weather forecasts.
Dahlquist returned to Stockholm University to complete his Ph.D., Stability and Error Bounds in the Numerical Solution of Ordinary Differential Equations, which he defended in 1958, with Fritz Carlson and Lars Hörmander as his advisors.[2] As part of this work he introduced the logarithmic norm (also introduced by Russian mathematician Sergei Lozinskii the same year).
In 1959 he moved to the
Royal Institute of Technology (KTH), where he would later establish what became the Department of Numerical Analysis and Computer Science (NADA) in 1962 (now part of the School of Computer Science and Communication), and become Sweden's first Professor of Numerical Analysis in 1963.[3] He helped establish the Nordic journal of numerical analysis, BIT, in 1961. In 1965 he was elected into the Royal Swedish Academy of Engineering Sciences
(IVA).
The software package
partial differential equations, was started by a couple of Dahlquist's graduate students based upon codes developed for a graduate course at KTH.[1]
See also
Honors and awards
- SIAM 1988 John von Neumann lecturer.
- SIAM 1991 Peter Henrici Prize.
- SIAM Germund Dahlquist Prize, established 1995, "Awarded to a young scientist (normally under 45) for original contributions to fields associated with Germund Dahlquist, especially the numerical solution of differential equations and numerical methods for scientific computing".
- Three honorary doctorates, from Linköping(1996).
Notes
- ^ a b "SIAM Obituary - Germund Dahlquist". Archived from the original on 2015-11-21. Retrieved 2006-12-29.
- ^ Germund Dahlquist at the Mathematics Genealogy Project
- ^ NADA History
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