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Alan Baker (mathematician)

From Wikipedia, the free encyclopedia

Alan Baker

Born(1939-08-19)19 August 1939
London, England
Died4 February 2018(2018-02-04) (aged 78)
Cambridge, England
Alma materUniversity College London
University of Cambridge
Known forNumber theory
Diophantine equations
Baker's theorem
Baker–Heegner–Stark theorem
AwardsFields Medal (1970)
Adams Prize (1972)
Scientific career
FieldsMathematics
InstitutionsUniversity of Cambridge
ThesisSome Aspects of Diophantine Approximation (1964)
Doctoral advisorHarold Davenport
Doctoral studentsJohn Coates
Yuval Flicker
Roger Heath-Brown
David Masser
Cameron Stewart

Alan Baker FRS[1] (19 August 1939 – 4 February 2018[2]) was an English mathematician, known for his work on effective methods in number theory, in particular those arising from transcendental number theory.

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Transcription

Life

Alan Baker was born in London on 19 August 1939. He attended Stratford Grammar School, East London, and his academic career started as a student of Harold Davenport, at University College London and later at Trinity College, Cambridge, where he received his PhD.[3] He was a visiting scholar at the Institute for Advanced Study in 1970 when he was awarded the Fields Medal at the age of 31.[4] In 1974 he was appointed Professor of Pure Mathematics at Cambridge University, a position he held until 2006 when he became an Emeritus. He was a fellow of Trinity College from 1964 until his death.[3]

His interests were in number theory, transcendence, linear forms in logarithms, effective methods, Diophantine geometry and Diophantine analysis.

In 2012 he became a fellow of the American Mathematical Society.[5] He has also been made a foreign fellow of the National Academy of Sciences, India.[6]

Research

Baker generalised the Gelfond–Schneider theorem, itself a solution to Hilbert's seventh problem.[7] Specifically, Baker showed that if are algebraic numbers (besides 0 or 1), and if are irrational algebraic numbers such that the set is linearly independent over the rational numbers, then the number is transcendental.

Baker made significant contributions to several areas in number theory, such as the Gauss class number problem,[8] diophantine approximation, and to Diophantine equations such as the Mordell curve.[9][10]

Selected publications

  • Baker, Alan (1966), "Linear forms in the logarithms of algebraic numbers. I", Mathematika, 13 (2): 204–216, doi:10.1112/S0025579300003971, ISSN 0025-5793, MR 0220680
  • Baker, Alan (1967a), "Linear forms in the logarithms of algebraic numbers. II", Mathematika, 14: 102–107, doi:10.1112/S0025579300008068, ISSN 0025-5793, MR 0220680
  • Baker, Alan (1967b), "Linear forms in the logarithms of algebraic numbers. III", Mathematika, 14 (2): 220–228, doi:10.1112/S0025579300003843, ISSN 0025-5793, MR 0220680
  • Baker, Alan (1990), Transcendental number theory, Cambridge Mathematical Library (2nd ed.), Cambridge University Press, ISBN 978-0-521-39791-9, MR 0422171; 1st edition. 1975.[11]
  • Baker, Alan; Wüstholz, G. (2007), Logarithmic forms and Diophantine geometry, New Mathematical Monographs, vol. 9, Cambridge University Press, ISBN 978-0-521-88268-2, MR 2382891

Honours and awards

References

  1. ^ Masser, David (2023). "Alan Baker. 19 August 1939—4 February 2018". Biographical Memoirs of Fellows of the Royal Society. 74.
  2. ^ Trinity College website, retrieved 5 February 2018
  3. ^ a b "BAKER, Prof. Alan". Who's Who & Who Was Who. Vol. 2019 (online ed.). A & C Black. (Subscription or UK public library membership required.)
  4. ^ Institute for Advanced Study: A Community of Scholars Archived 6 January 2013 at the Wayback Machine
  5. ^ List of Fellows of the American Mathematical Society, retrieved 2012-11-03.
  6. ^ "National Academy of Sciences, India: Foreign Fellows". Archived from the original on 18 February 2017. Retrieved 2 June 2018.
  7. ^ Biography in Encyclopædia Britannica. http://www.britannica.com/eb/article-9084909/Alan-Baker
  8. ^ Goldfeld, Dorian (1985). "Gauss' class number problem for imaginary quadratic fields". Bulletin of the American Mathematical Society. American Mathematical Society (AMS). 13 (1): 23–37. doi:10.1090/s0273-0979-1985-15352-2. ISSN 0273-0979.
  9. ^ Masser, David (2021). "Alan Baker, FRS, 1939–2018". Bulletin of the London Mathematical Society. Wiley. 53 (6): 1916–1949. doi:10.1112/blms.12553. ISSN 0024-6093. S2CID 245627886.
  10. ^ Wüstholz, Gisbert (2019). "Obituary of Alan Baker FRS". Acta Arithmetica. Institute of Mathematics, Polish Academy of Sciences. 189 (4): 309–345. doi:10.4064/aa181211-14-12. ISSN 0065-1036. S2CID 197494318.
  11. ^ Stolarsky, Kenneth B. (1978). "Review: Transcendental number theory by Alan Baker; Lectures on transcendental numbers by Kurt Mahler; Nombres transcendants by Michel Waldschmidt" (PDF). Bull. Amer. Math. Soc. 84 (8): 1370–1378. doi:10.1090/S0002-9904-1978-14584-4.

External links

This page was last edited on 14 March 2024, at 23:38
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