1927 - 2023
Sigurdur Helgason (mathematician) Icelander Mathematician
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Sigurdur Helgason (mathematician) is a member of the following lists: Princeton University alumni, 1927 births and Guggenheim Fellows.
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Details
| First Name |
Sigurdur
|
| Last Name |
Helgason
|
| Birthday |
30th November, 1926
|
| Birthplace |
Akureyri, Iceland
|
| Died |
3rd December, 2023
|
| Eye Color |
Blue
|
| Hair Color |
Grey
|
| Ethnicity |
White
|
| Nationality |
Icelander
|
| Occupation Text |
Icelandic mathematician
|
| Occupation |
Mathematician
|
Sigurdur Helgason (30 September 1927 – 3 December 2023; Icelandic: Sigurður) was an Icelandic mathematician whose research has been devoted to the geometry and analysis on symmetric spaces. In particular, he has used new integral geometric methods to establish fundamental existence theorems for differential equations on symmetric spaces as well as some new results on the representations of their isometry groups. He also introduced a Fourier transform on these spaces and proved the principal theorems for this transform, the inversion formula, the Plancherel theorem and the analog of the Paley–Wiener theorem.
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