| Authorised form of name | James; Ioan Mackenzie (1928-2025); mathematician |
| Dates | 1928-2025 |
| Nationality | British |
| Place of birth | Croydon, Surrey, England, United Kingdom |
| Date of birth | 23 May 1928 |
| Place of death | Oxford, England, United Kingdom |
| Date of death | 21 February 2025 |
| Occupation | Mathematician |
| Research field | Algebraic topology |
| Geometry |
| Topology |
| Mathematics |
| Activity | Education: St Paul's School, London; Queen's College, University of Oxford
Career:
He was warded the Commonwealth Fund Fellowship and went to the United States to spend time at Princeton University, the University of California at Berkeley and the Institute for Advanced Study at Princeton (1954-1955); Tapp Research Fellow at Gonville and Caius College, Cambridge (1956); appointed Reader in Pure Mathematics, University of Oxford (1957-1969); Senior Research Fellow, St John's College (1959-1969); Savilian Professor of Geometry, Mathematical Institute, University of Oxford (1970-1995); Emeritus Savilian Professor of Geometry, Mathematical (1995) Institute,University of Oxford
Awards/Medals:
Berwick Prize 1959
Senior Whitehead Prize 1978
Memberships:
London Mathematical Society |
| Membership category | Fellow |
| Date of election | 21/03/1968 |
| Age at election | 39 |
| RSActivity | Royal Society roles:
Council: 1981-1982 |
| Relationships | Spouse: (m. 1961) Rosemary Stewart (d. 2015), writer and researcher in business management and healthcare management. |
| PublishedWorks | RCN 12527
RCN 12528
RCN 12526
RCN 12529
RCN 10205 |
| OtherInfo | Ioan James made distinguished contributions to algebraic topology, especially the theory of homotopy groups of spheres and Lie groups. |
| Source | The Royal Society Fellows Directory, Professor Ioan James FRS, [URL: https://royalsociety.org/people/ioan-james-11695/; last accessed: 10/09/2025]
MT MacTutor, Ioan Mackenzie James, [URL: https://mathshistory.st-andrews.ac.uk/Biographies/James/; last accessed: 10/09/2025]
St John's College, News, Professor Ioan James FRS, 25 February 2025,[URL: https://www.sjc.ox.ac.uk/discover/news/professor-ioan-james-frs/; last accessed: 10/09/2025] |
| Code | NA4190 |
Archives associated with this Fellow
| RefNo | Title | Date |
| EC/1968/16 | James, Ioan Mackenzie: certificate of election to the Royal Society | |
| HWT/25/6 | Correspondence and papers regarding Chinese research workers in Britain and British visitors to China | August - December 1966 |
| HWT/25/9 | Correspondence with Chinese officials, British scientists and Leverhulme Trust regarding renewal of exchanges suspended in 1966 | March - November 1971 |