Bernhard Neumann

Bernhard Neumann
Born	(1909-10-15)15 October 1909 Berlin, Germany
Died	20 October 2002(2002-10-20) (aged 93) Canberra, Australia
Nationality	British and Australian
Alma mater	University of Berlin University of Cambridge
Known for	Petr–Douglas–Neumann theorem
Awards	Adams Prize (1952)
Scientific career
Fields	Mathematics
Institutions	Australian National University University of Manchester
Doctoral advisor	Issai Schur Philip Hall
Doctoral students	Gilbert Baumslag John Britton László Kovács Michael Newman James Wiegold

Bernhard Hermann Neumann AC FRS (15 October 1909 – 21 October 2002) was a German-born British-Australian mathematician who was a leader in the study of group theory.

Early life and education

After gaining a D Phil from Friedrich-Wilhelms Universität in Berlin in 1932 he earned a PhD at the University of Cambridge in 1935 and a Doctor of Science at the University of Manchester in 1954. His students included Gilbert Baumslag, László Kovács, Michael Newman, and James Wiegold. After war service with the British Army he became a lecturer at University College, Hull, before moving in 1948 to the University of Manchester, where he spent the next 14 years. In 1954 he received a DSc from Cambridge University.

In 1962 he migrated to Australia to take up Foundation Chair of the Department of Mathematics within the Institute of Advanced Studies of the Australian National University (ANU), where he served as Head of the Department until retiring in 1974. In addition he was a Senior Research Fellow at the CSIRO Division of Mathematics and Statistics from 1975 to 1977 and then Honorary Research Fellow from 1978 until his death in 2002.

His wife, Hanna Neumann, and son, Peter M. Neumann, are also notable for their contributions to group theory.

He was elected a Fellow of the Royal Society in 1959. In 1994, he was appointed a Companion of the Order of Australia (AC).

The Australian Mathematical Society awards a student prize named in his honour. The group-theoretic notion of HNN extension (where HNN stands for Higman–Neumann–Neumann) is named in (second) part after him.

Career

• Assistant Lecturer, University College, Cardiff, 1937–40.
• Army Service, 1940–45.
• Lecturer, University College, Hull, (now University of Hull), 1946–48
• Lecturer, Senior Lecturer, Reader, Manchester, 1948–61
• Professor and Head of Department of Mathematics, Institute of Advanced Studies, ANU, Canberra, 1962–74; Emeritus Professor, 1975–2002.
• Senior Research Fellow, CSIRO Division of Mathematics and Statistics, 1975–77; Honorary Research Fellow, 1978–99.
• Founding member of the World Cultural Council, 1981.

Awards

• 1984 Matthew Flinders Medal and Lecture
• 1952 Adams Prize, University of Cambridge

External links

• Bernhard Neumann at the Mathematics Genealogy Project