Andrzej Grzegorczyk
| Andrzej Grzegorczyk | |
|---|---|
 September 2012 | |
| Born |
August 22, 1922 Warsaw |
| Died |
March 20, 2014 (aged 91) Warsaw |
| Nationality | Polish |
| Fields | Mathematics, Philosophy |
| Alma mater | Warsaw University |
| Thesis | On Topological Spaces In Topologies Without Points (1950) |
| Doctoral advisor | Andrzej Mostowski |
| Known for | Grzegorczyk hierarchy |
| Notable awards | Order of Polonia Restituta |
Andrzej Grzegorczyk [ˈandʐɛj ɡʐɛˈɡɔrt͡ʂɨk] (22 August 1922 – 20 March 2014) was a Polish mathematician and philosopher. He is known for his work in computability, logic, and the foundations of mathematics (Krajewski and Woleński, 2008).
Grzegorczyk was born in Warsaw, Commonwealth of Poland. He became the first to describe the Grzegorczyk hierarchy, a subrecursive hierarchy that foreshadowed computational complexity theory.[1] He died in Warsaw on 20 March 2014 of natural causes, at the age of 91.
References
- ↑ "Zmarł prof. Andrzej Grzegorczyk, wybitny logik i filozof". ekai.pl. 2013-05-14. Archived from the original on 2014-03-22. Retrieved 2014-03-21.
Sources
- Stanisław Krajewski and Jan Woleński (2008), "Andrzej Grzegorczyk: Logic and Philosophy", Fundamenta Informaticae, v. 81 n. 1–3, pp. 1–17. ISSN 0169-2968
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