Hans Schwerdtfeger
Hans Schwerdtfeger (left)
Born	(1902-12-09)9 December 1902 Göttingen, German Empire
Died	26 June 1990(1990-06-26) (aged 87) Adelaide, Australia
Nationality	German Canadian Australian
Alma mater	Bonn University
Scientific career
Fields	Mathematics
Institutions	University of Melbourne McGill University University of Adelaide
Doctoral advisor	Otto Toeplitz
Doctoral students	Peter James Lorimer

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.

"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

• EP matrix

• Hans Schwerdtfeger at the Mathematics Genealogy Project
• O'Connor, John J.; Robertson, Edmund F., "Hans Schwerdtfeger", MacTutor History of Mathematics Archive, University of St Andrews