Frithiof Edvard Henrik Nevanlinna (16 August 1894 – 20 March 1977) was a Finnish

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

and professor who worked on classical and

complex analysis Complex analysis, traditionally known as the theory of functions of a complex variable, is the branch of mathematical analysis that investigates functions of complex numbers. It is helpful in many branches of mathematics, including algebra ...

. He was born in

Joensuu Joensuu (; krl, Jovensuu; ) is a city and municipality in North Karelia, Finland, located on the northern shore of Lake Pyhäselkä (northern part of Lake Saimaa) at the mouth of the Pielinen River (''Pielisjoki''). It was founded in 1848. T ...

, and was the older brother of

Rolf Nevanlinna Rolf Herman Nevanlinna (né Neovius; 22 October 1895 – 28 May 1980) was a Finnish mathematician who made significant contributions to complex analysis. Background Nevanlinna was born Rolf Herman Neovius, becoming Nevanlinna in 1906 when his fa ...

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* {{DEFAULTSORT:Nevanlinna, Frithiof 1894 births 1977 deaths People from Joensuu People from Kuopio Province (Grand Duchy of Finland) Finnish mathematicians Academic staff of the University of Helsinki