Hans Wilhelm Eduard Schwerdtfeger FRSC (9 December 1902 – 26 June 1990) was a German-Canadian-Australian mathematician who worked in Galois theory, matrix theory, theory of groups and their geometries, and complex analysis.

Hans Schwerdtfeger
Hans Schwerdtfeger (left)
Born(1902-12-09)9 December 1902
Died26 June 1990(1990-06-26) (aged 87)
NationalityGerman
Canadian
Australian
Alma materBonn University
Scientific career
FieldsMathematics
InstitutionsUniversity of Melbourne
McGill University
University of Adelaide
Doctoral advisorOtto Toeplitz
Doctoral studentsPeter James Lorimer

"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. " - O'Connor, John J.; Robertson, Edmund F., "Hans Schwerdtfeger", MacTutor History of Mathematics Archive, University of St Andrews

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