Christian Harald Lauritz Peter Emil Bohr (1855–1911, both in Copenhagen) was a Danish physician, father of the physicist and Nobel laureate Niels Bohr, as well as the mathematician Harald Bohr and grandfather of another physicist and nobel laureate Aage Bohr.
Dahlquist began to study mathematics at Stockholm University in 1942 at the age of 17, where he cites the Danish mathematician Harald Bohr (who was living in exile after the occupation of Denmark during World War II) as a profound influence.
Fleeing the post-war chaos of Hungary after World War I he moved to Denmark in 1919, possibly by the invitation of Harald Bohr, where he spent the rest of his life and westernized his name to Julius Pal.
Though a Danish side had played at the 1906 Intercalated Games, the opening match of the 1908 Olympic tournament was Denmark's first official international football match.
In a 1947 lecture, the Danish mathematician Harald Bohr said, "To illustrate to what extent Hardy and Littlewood in the course of the years came to be considered as the leaders of recent English mathematical research, I may report what an excellent colleague once jokingly said: 'Nowadays, there are only three really great English mathematicians: Hardy, Littlewood, and Hardy–Littlewood.'"
The notion of quasi-periodic functions was generalised still further by Harald Bohr when he introduced almost-periodic functions.
One definition, the "cut and project" construction, is based on the work of Harald Bohr.
Harald Bohr - the brother of physicist Niels Bohr - is one famous alumni of the department; his research in harmonic analysis and almost periodic functions in the 1930s laid the foundation for a huge drive in analysis.
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