Hans Wilhelm Eduard Schwerdtfeger (9 December 1902 – 26 June 1990) was a German-Canadian-Australian mathematician who worked in

Galois theory In mathematics, Galois theory, originally introduced by Évariste Galois, provides a connection between field theory and group theory. This connection, the fundamental theorem of Galois theory, allows reducing certain problems in field theory to ...

matrix Matrix most commonly refers to: * ''The Matrix'' (franchise), an American media franchise ** ''The Matrix'', a 1999 science-fiction action film ** "The Matrix", a fictional setting, a virtual reality environment, within ''The Matrix'' (franchis ...

theory, theory of

groups A group is a number of persons or things that are located, gathered, or classed together. Groups of people * Cultural group, a group whose members share the same cultural identity * Ethnic group, a group whose members share the same ethnic iden ...

and their geometries, and

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

. "In 1962 he published '' Geometry of Complex Numbers: Circle Geometry, Möbius Transformations, Non-Euclidean Geometry'' which: ... should be in every library, and every expert in classical function theory should be familiar with this material. The author has performed a distinct service by making this material so conveniently accessible in a single book. " -

References

* * {{DEFAULTSORT:Schwerdtfeger, Hans 1902 births 1990 deaths University of Bonn alumni Academic staff of the University of Melbourne Academic staff of McGill University Academic staff of the University of Adelaide 20th-century German mathematicians 20th-century Canadian mathematicians 20th-century Australian mathematicians

See also

References