Person Grant; Ian Philip (1930 - 2025); mathematical physicist Grant Ian Philip mathematical physicist 1930 - 2025 British Male London, England, United Kingdom 15 December 1930 19301215 England, United Kingdom 1 March 2025 20250301

Mathematical physicist Computational physics Theoretical Chemistry Nuclear physics Astronomy Theoretical physics Applied mathematics Mathematics Education: St Albans School, Hertfordshire (1939-1948); Wadham College Oxford, MA (1951); D.Phil (1954) Career: Research Student in Clarendon Laboratory, Pembroke College, Oxford (1950s); called up to the Royal Signals (1954); Sergeant to the Atomic Weapons Research Establishment, Mathematical Physical Division of the Atomic Energy Authority; Senior then Principal Scientific Officer; Research Fellow in Mathematics, Pembroke and Atlas Research Fellow at the Atlas Computer Laboratory, Chilton (1964-1969); Fellow at Pembroke and Lecturer in Mathematics (1969); served as Dean (1965-1971); Tutor of Admissions (1977-1982); Vicegerent (1984-1987); promoted to a Readership at the University (1990); appointed to a personal chair as Professor of Mathematical Physics (1992); retired and became Emeritus Fellow of Pembroke and Emeritus Professor of Mathematical Physics (1998); appointed as a Visiting Professor of the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge, working within the Atomic Astrophysics Research Group (2013). Conducted work on relativistic effects in atomic physics, of importance for detailed studies of all atomic systems and particularly for heavy atoms and for highly ionised atoms in laboratory and astronomical plasmas. Ian has made fundamental contributions to the development of the relevant mathematical theory and has shown great skill in writing computer codes which are used worldwide. He obtained accurate results for energy levels and laid the foundations for important further advances. His later work included studies of electron scattering from heavy atoms and of the structures of molecules containing heavy atoms. He also did important earlier work on radiative transfer in stellar and planetary atmospheres. Committees: International Exchanges Committee 2019-2024 Fellow 12/03/1992 61 The Royal Society Fellows Directory, Emeritus Professor Ian Grant FRS, [URL: https://royalsociety.org/people/ian-grant-11526/; last accessed: 23/04/2025] Pembroke College Oxford, Professor Ian Philip Grant (1930 – 2025), 7 March 2025, [URL: https://www.pmb.ox.ac.uk/news/professor-ian-philip-grant-1930-2025; last accessed: 23/04/2025] International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) - Ottawa 1996 ISBN 0-9696035-3-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 https://royalsocietypublishing.org/action/doSearch?ContribAuthorRaw=Grant%2C+Ian+Philip RCN 53118 15 Dec 1930 - NA4079 21/11/2001 Andyg Pmab 09/09/2025 RS_NET\VidaM Yes 353cca24-3b56-4a66-81aa-73b842c99025