Mathematician:Bernhard Hermann Neumann

Full name: Bernhard Hermann Neumann.

German-born mathematician who was one of the leaders in the field of group theory.

Husband of Hanna Neumann and father of Peter M. Neumann.

Nationality
German

History

 * Born: 15 October 1909, Berlin, Germany
 * 1933: Moved to Cambridge, UK, via Amsterdam.
 * 1938: Married Hanna Neumann.
 * 1959: Elected a Fellow of the Royal Society of London.
 * 1962: Moved to Australia.
 * 1963: Elected a Fellow of the Australian Academy of Sciences.
 * 1994: Appointed a Companion of the Order of Australia (AC).
 * Died: 20 October 2002, Canberra, Australia

Theorems and Definitions

 * HNN Extension (named after Graham Higman, Bernhard Neumann and Hanna Neumann)

Books and Papers

 * 1949: Embedding theorems for groups (with Graham Higman and Hanna Neumann)
 * 1960: Lectures on topics in the theory of infinite groups
 * 1973: Byron's daughter (biography about Ada Lovelace)