Pekka Myrberg
Pekka Juhana Myrberg (born December 30, 1892 in Viipuri , † November 8, 1976 in Helsinki ) was a Finnish mathematician. His specialty was function theory . He was the rector of Helsinki University .
Myrberg received his doctorate in 1916 at the University of Helsinki under Ernst Lindelöf ( on the theory of the convergence of the Poincaré series ). He initially taught at a grammar school before becoming associate professor at Helsinki University in 1921. In 1952 he was rector and from 1952 to 1962 chancellor of the University of Helsinki. In 1962 he retired, but published until the 1970s.
In the 1950s he published a series of fundamental papers on the iteration of rational functions in the complex and the real (especially quadratic functions). He revived their investigation after the beginnings of Gaston Julia and Pierre Fatou at the beginning of the 20th century and is considered a forerunner of the period doubling path to chaos, which Mitchell Feigenbaum investigated in the late 1970s.
Lauri Myrberg and Kaarlo Virtanen are among his PhD students .
He was a member of the Finnish Academy of Sciences . In 1942 he became a corresponding member of the Saxon Academy of Sciences . In 1954 he was invited speaker at the International Congress of Mathematicians in Amsterdam (on the integration of Poisson's equation on Riemann surfaces ).
literature
- Gustav Elfving : The history of mathematics in Finland 1828–1918 . Societas Scientiarium Fennica, Helsinki, 1981; Pp. 178-181.
Individual evidence
- ↑ Pekka Myrberg in the Mathematics Genealogy Project (English)
- ↑ Some of his work online , Annales Acad. Sci. Fennicae 1958, 1959, 1963, J. Math. Pures Appliquées 1962
| personal data | |
|---|---|
| SURNAME | Myrberg, Pekka |
| ALTERNATIVE NAMES | Myrberg, Pekka Juhana |
| BRIEF DESCRIPTION | Finnish mathematician |
| DATE OF BIRTH | December 30, 1892 |
| PLACE OF BIRTH | Viipuri |
| DATE OF DEATH | November 8, 1976 |
| Place of death | Helsinki |