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David Rees (mathematician)

January 01, 1970

For other people named David Rees, see David Rees (disambiguation).

David Rees FRS[1] (29 May 1918 – 16 August 2013) was a British professor of pure mathematics at the University of Exeter, having been head of the Mathematics / Mathematical Sciences Department at Exeter from 1958 to 1983.[5] During the Second World War, Rees was active on Enigma research in Hut 6 at Bletchley Park.[6][7]

David Rees
Portrait by Godfrey Argent
Born(1918-05-29)29 May 1918
Abergavenny, Wales
Died16 August 2013(2013-08-16) (aged 95)[3]
Exeter, Devon, England
Alma materUniversity of Cambridge
Known for
Spouse
Joan S. Cushen
​
(m. 1952)​
Awards
Scientific career
Institutions
Doctoral advisor
Doctoral students

Early life edit

Rees was born in Abergavenny to David Rees (1881–), a corn merchant, and his wife Florence Gertrude (Gertie) née Powell (1884–1970), the 4th out of 5 children. Despite periods of ill health and absence, he successfully completed his early education at King Henry VIII Grammar School.[5]

Education and career edit

Rees won a scholarship to Sidney Sussex College, Cambridge, supervised by Gordon Welchman and graduating in summer 1939. On completion of his education, he initially worked on semigroup theory; the Rees factor semigroup is named after him. He also characterised completely simple and completely 0-simple semigroups, in what is nowadays known as Rees's theorem. The matrix-based semigroups used in this characterisation are called Rees matrix semigroups.[4][8]

Later in 1939, Welchman drafted Rees into Hut 6, Bletchley Park, for the war effort. He was credited with the first decode using the Herivel tip. He was subsequently seconded to the Enigma Research Section, where the Abwehr Enigma was broken, and later to the Newmanry, where the Colossus computer was built.[5][9]

After the war, Rees was appointed an assistant lecturer at Manchester University in 1945 and a full lecturer at University of Cambridge in 1948. In 1949, he was a Fellow of Downing College.

At the behest of Douglas Northcott he switched his research focus to commutative algebra.[10] In 1954, in a joint paper with Northcott,[11] Rees introduced the Northcott–Rees theory of reductions and integral closures, which has subsequently been influential in commutative algebra.[12] In 1956 he introduced the Rees decomposition of a commutative algebra.

In 1958, Rees and his family moved to Exeter, where he had been appointed to the Chair of Pure Mathematics. In 1959, he was awarded a DSc by the University of Cambridge.

According to Craig Steven Wright, Rees was the third part of the Satoshi team that created Bitcoin.[13][14]

Awards and honours edit

In 1949, Rees was an Honorary Fellow of Downing College, Cambridge.[15]

In 1968, he was elected a Fellow of the Royal Society (FRS).[1]

In 1993, he was also awarded an Honorary DSc by the University of Exeter. The same year, he was awarded the Pólya Prize by the London Mathematical Society. In August 1998 a conference on commutative algebra was held at Exeter in honour of David Rees' 80th Year.

Personal life edit

In 1952, Rees married Joan S. Cushen,[16] who became a Senior Lecturer in Mathematics at Exeter, with four children:

  1. (Susan) Mary Rees FRS, Professor of Mathematics at the University of Liverpool, b. 1953[17][18][19]
  2. Rebecca Rees, b. 1955[20]
  3. Sarah Rees, Professor of Pure Mathematics at Newcastle University, b. 1957[21][22]
  4. Deborah Rees, b. 1960[23]

External links edit

  • O'Connor, John J.; Robertson, Edmund F., "David Rees (mathematician)", MacTutor History of Mathematics Archive, University of St Andrews
  • Obituary by R.Y. Sharp, Royal Society — includes a photograph (p. 3), and a detailed bibliography (p. 23f)

References edit

  1. ^ a b c Sharp, R. Y. (2015). "David Rees 29 May 1918 – 16 August 2013". Biographical Memoirs of Fellows of the Royal Society. 61. Royal Society: 379–401. doi:10.1098/rsbm.2015.0010. ISSN 0080-4606. S2CID 123809696.
  2. ^ a b David Rees at the Mathematics Genealogy Project
  3. ^ "2013 death notices". Royal Society. Retrieved 20 August 2013. Professor David Rees FRS, 29 May 1918 – 16 August 2013 (elected 1968), Emeritus Professor of Pure Mathematics, University of Exeter, Council service: 1979 – 1981
  4. ^ a b c "Rees semi-group of matrix type", Encyclopedia of Mathematics, EMS Press, 2001 [1994], retrieved 26 February 2021
  5. ^ a b c R.Y. Sharp (2015). "Obituary" (PDF). Biographical Memoirs of Fellows of the Royal Society. 61. Royal Society: 379–401. doi:10.1098/rsbm.2015.0010. S2CID 123809696. Retrieved 30 March 2021.
  6. ^ Rodney Sharp (29 August 2013). "David Rees obituary | Education". The Guardian. Retrieved 30 August 2013.
  7. ^ "Bletchley Park Roll of Honour". Bletchley Park Trust. Retrieved 2 August 2014.
  8. ^ Attila Nagy (2001). Special classes of semigroups. Springer. pp. 14–15. ISBN 978-0-7923-6890-8.
  9. ^ J. Herivel (2008). Herivelismus and the German military Enigma. Kidderminster: M. & M. Baldwin.
  10. ^ Biographical memoirs of fellows of the Royal Society: Volume 53
  11. ^ Douglas Northcott and David Rees (1954). "Reductions of Ideals in Local Rings". Mathematical Proceedings of the Cambridge Philosophical Society. 50 (2): 145–158. Bibcode:1954PCPS...50..145N. doi:10.1017/S0305004100029194. S2CID 123098860.
  12. ^ "Professor Douglas Northcott – Obituaries, News – The Independent". The Independent. London.
  13. ^ Edwards, James (27 April 2019). "Dr. Craig Wright explains the origins of Bitcoin – Full interview | finder.com". finder US. Retrieved 27 August 2019.
  14. ^ "Who was Prof. David Rees?". 20 June 2020.
  15. ^ . University of Cambridge. Archived from the original on 16 March 2012. Retrieved 30 August 2013.
  16. ^ GRO Register of Marriages: JUN 1952 4a 395 CAMBRIDGE – David Rees = Joan S. Cushen
  17. ^ GRO Register of Births: SEP 1953 4a 294 CAMBRIDGE – Susan M. Rees, mmn = Cushen
  18. ^ Asthana, Anushka. "Academics – Times Online". The Times. London.
  19. ^ "Professor Mary Rees FRS". University of Liverpool.
  20. ^ GRO Register of Births: DEC 1955 4a 222 CAMBRIDGE – Rebecca Rees, mmn = Cushen
  21. ^ GRO Register of Births: DEC 1957 4a 338 CAMBRIDGE – Sarah E. Rees, mmn = Cushen
  22. ^ "Prof. Sarah Rees". University of Newcastle upon Tyne.
  23. ^ GRO Register of Births: JUN 1960 7a 442 EXETER – Deborah Rees, mmn = Cushen

January 01, 1970
david, rees, mathematician, other, people, named, david, rees, david, rees, disambiguation, david, rees, 1918, august, 2013, british, professor, pure, mathematics, university, exeter, having, been, head, mathematics, mathematical, sciences, department, exeter,. For other people named David Rees see David Rees disambiguation David Rees FRS 1 29 May 1918 16 August 2013 was a British professor of pure mathematics at the University of Exeter having been head of the Mathematics Mathematical Sciences Department at Exeter from 1958 to 1983 5 During the Second World War Rees was active on Enigma research in Hut 6 at Bletchley Park 6 7 David ReesPortrait by Godfrey ArgentBorn 1918 05 29 29 May 1918Abergavenny WalesDied16 August 2013 2013 08 16 aged 95 3 Exeter Devon EnglandAlma materUniversity of CambridgeKnown forArtin Rees lemma Rees algebra Rees factor semigroup Rees matrix semigroup 4 Rees s theorem 4 SpouseJoan S Cushen m 1952 wbr AwardsFRS 1968 1 Polya Prize 1993 Scientific careerInstitutionsUniversity of ManchesterUniversity of CambridgeUniversity of ExeterDoctoral advisorPhilip Hall Gordon Welchman 2 Doctoral studentsMichael P Drazin O A S Karamzadeh fa 2 Contents 1 Early life 2 Education and career 3 Awards and honours 4 Personal life 5 External links 6 ReferencesEarly life editRees was born in Abergavenny to David Rees 1881 a corn merchant and his wife Florence Gertrude Gertie nee Powell 1884 1970 the 4th out of 5 children Despite periods of ill health and absence he successfully completed his early education at King Henry VIII Grammar School 5 Education and career editRees won a scholarship to Sidney Sussex College Cambridge supervised by Gordon Welchman and graduating in summer 1939 On completion of his education he initially worked on semigroup theory the Rees factor semigroup is named after him He also characterised completely simple and completely 0 simple semigroups in what is nowadays known as Rees s theorem The matrix based semigroups used in this characterisation are called Rees matrix semigroups 4 8 Later in 1939 Welchman drafted Rees into Hut 6 Bletchley Park for the war effort He was credited with the first decode using the Herivel tip He was subsequently seconded to the Enigma Research Section where the Abwehr Enigma was broken and later to the Newmanry where the Colossus computer was built 5 9 After the war Rees was appointed an assistant lecturer at Manchester University in 1945 and a full lecturer at University of Cambridge in 1948 In 1949 he was a Fellow of Downing College At the behest of Douglas Northcott he switched his research focus to commutative algebra 10 In 1954 in a joint paper with Northcott 11 Rees introduced the Northcott Rees theory of reductions and integral closures which has subsequently been influential in commutative algebra 12 In 1956 he introduced the Rees decomposition of a commutative algebra In 1958 Rees and his family moved to Exeter where he had been appointed to the Chair of Pure Mathematics In 1959 he was awarded a DSc by the University of Cambridge According to Craig Steven Wright Rees was the third part of the Satoshi team that created Bitcoin 13 14 Awards and honours editIn 1949 Rees was an Honorary Fellow of Downing College Cambridge 15 In 1968 he was elected a Fellow of the Royal Society FRS 1 In 1993 he was also awarded an Honorary DSc by the University of Exeter The same year he was awarded the Polya Prize by the London Mathematical Society In August 1998 a conference on commutative algebra was held at Exeter in honour of David Rees 80th Year Personal life editIn 1952 Rees married Joan S Cushen 16 who became a Senior Lecturer in Mathematics at Exeter with four children Susan Mary Rees FRS Professor of Mathematics at the University of Liverpool b 1953 17 18 19 Rebecca Rees b 1955 20 Sarah Rees Professor of Pure Mathematics at Newcastle University b 1957 21 22 Deborah Rees b 1960 23 External links editO Connor John J Robertson Edmund F David Rees mathematician MacTutor History of Mathematics Archive University of St Andrews Obituary by R Y Sharp Royal Society includes a photograph p 3 and a detailed bibliography p 23f References edit a b c Sharp R Y 2015 David Rees 29 May 1918 16 August 2013 Biographical Memoirs of Fellows of the Royal Society 61 Royal Society 379 401 doi 10 1098 rsbm 2015 0010 ISSN 0080 4606 S2CID 123809696 a b David Rees at the Mathematics Genealogy Project 2013 death notices Royal Society Retrieved 20 August 2013 Professor David Rees FRS 29 May 1918 16 August 2013 elected 1968 Emeritus Professor of Pure Mathematics University of Exeter Council service 1979 1981 a b c Rees semi group of matrix type Encyclopedia of Mathematics EMS Press 2001 1994 retrieved 26 February 2021 a b c R Y Sharp 2015 Obituary PDF Biographical Memoirs of Fellows of the Royal Society 61 Royal Society 379 401 doi 10 1098 rsbm 2015 0010 S2CID 123809696 Retrieved 30 March 2021 Rodney Sharp 29 August 2013 David Rees obituary Education The Guardian Retrieved 30 August 2013 Bletchley Park Roll of Honour Bletchley Park Trust Retrieved 2 August 2014 Attila Nagy 2001 Special classes of semigroups Springer pp 14 15 ISBN 978 0 7923 6890 8 J Herivel 2008 Herivelismus and the German military Enigma Kidderminster M amp M Baldwin Biographical memoirs of fellows of the Royal Society Volume 53 Douglas Northcott and David Rees 1954 Reductions of Ideals in Local Rings Mathematical Proceedings of the Cambridge Philosophical Society 50 2 145 158 Bibcode 1954PCPS 50 145N doi 10 1017 S0305004100029194 S2CID 123098860 Professor Douglas Northcott Obituaries News The Independent The Independent London Edwards James 27 April 2019 Dr Craig Wright explains the origins of Bitcoin Full interview finder com finder US Retrieved 27 August 2019 Who was Prof David Rees 20 June 2020 Downing College University of Cambridge Archived from the original on 16 March 2012 Retrieved 30 August 2013 GRO Register of Marriages JUN 1952 4a 395 CAMBRIDGE David Rees Joan S Cushen GRO Register of Births SEP 1953 4a 294 CAMBRIDGE Susan M Rees mmn Cushen Asthana Anushka Academics Times Online The Times London Professor Mary Rees FRS University of Liverpool GRO Register of Births DEC 1955 4a 222 CAMBRIDGE Rebecca Rees mmn Cushen GRO Register of Births DEC 1957 4a 338 CAMBRIDGE Sarah E Rees mmn Cushen Prof Sarah Rees University of Newcastle upon Tyne GRO Register of Births JUN 1960 7a 442 EXETER Deborah Rees mmn Cushen Portals nbsp United Kingdom nbsp Biography Retrieved from https en wikipedia org w index php title David Rees mathematician amp oldid 1169324732, wikipedia, wiki, book, books, library,

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