Mathematician:Bernhard Hermann Neumann

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

Husband of and father of.

Nationality
German

History

 * Born: 15 October 1909, Berlin, Germany
 * 1933: Moved to Cambridge, UK, via Amsterdam.
 * 1938: Married.
 * 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

 * Petr-Douglas-Neumann Theorem (also known as the PDN-Theorem) (independently of both and )
 * HNN Extension (named after, and )

Publications

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