Johanna (Hanna) Neumann | |
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| Born | Johanna von Caemmerer 12 February 1914 Lankwitz, Steglitz-Zehlendorf, Germany |
| Died | 14 November 1971 (aged 57) |
| Nationality | German |
| Citizenship | British, Australian |
| Alma mater | University of Berlin, University of Göttingen, University of Oxford |
| Known for | Group theory |
| Spouse | Bernhard Neumann |
| Children | Peter M. Neumann, Walter Neumann, Irene Neumann, Daniel Neumann, Barbara Neumann |
| Awards | Fellowship of the Australian Academy of Science (1969), Fellowship of the Australian College of Educators (1970). |
| Scientific career | |
| Fields | Mathematics |
| Institutions | University of Hull, School of Mathematics, University of Manchester, Australian National University |
| Thesis | Sub-group Structure of Free Products of Groups with an Amalgamated Subgroup |
| Doctoral advisor | Olga Taussky-Todd |
Johanna (Hanna) Neumann (née von Caemmerer; 12 February 1914 – 14 November 1971) was a German-born mathematician who worked on group theory.