John Edward Campbell

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John Edward Campbell - Wikipedia

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John Edward Campbell

Born	(1862-05-27)27 May 1862 Lisburn, Ireland
Died	1 October 1924(1924-10-01) (aged 62) Oxford, Oxfordshire, England
Known for	Campbell's theorem Baker–Campbell–Hausdorff formula
Awards	Fellow of the Royal Society (1905)
Scientific career
Fields	Mathematics

John Edward Campbell (27 May 1862, Lisburn, Ireland – 1 October 1924, Oxford, Oxfordshire, England) was a mathematician, best known for his contribution to the Baker-Campbell-Hausdorff formula.

Biography

Campbell was born in a family of a doctor, also named John Campbell. He studied first at the Methodist College in Belfast and then at Queen's University Belfast, graduating in 1884. He then won a scholarship to study at the Oxford University, at Hertford College.^[1] There he won the Junior Mathematical University Scholarship in 1885, became a College Fellow in 1887, obtained a Senior Scholarship in 1888, and eventually became a tutor.^[2] Campbell was noted as a charming and highly devoted teacher and a proponent of women's education.^[3]

Campbell made his most notable contribution to mathematics in 1897 by introducing a formula for multiplication of exponentials in Lie algebras.^[4] This formula was later elaborated by Henri Poincaré^[5] (1899) and Henry Frederick Baker (1902).^[6] It was later systematised geometrically by Felix Hausdorff (1906)^[7] and became known as Baker-Campbell-Hausdorff formula.

In 1903, Campbell published a book on Introductory Treatise on Lie's Theory of Finite Continuous Transformation Groups where he popularised the ideas of Sophus Lie. He was elected a Fellow of the Royal Society in 1905, and served as president of the London Mathematical Society from 1918 to 1920. He was tutor to the future literary scholar C. S. Lewis in 1917, assisting Lewis with Responsions in mathematics as part of the entrance requirements for Oxford University/. Campbell was the first mathematician from Oxford who was invited, shortly before his death, by the Cambridge University to examine the Cambridge Mathematical Tripos.^[3]

Personal life

Campbell married Sarah Hardman (born in Oldham ca. 1862) in the Ashton Registration District in the late 1889. They had three sons and one daughter, all born in Oxford:^[2]

John Maurice Hardman Campbell (1891–1973)
William Percy Campbell (2 May 1894 – 24 October 1914)
Patrick James Campbell (22 December 1897 – )
Dorothea Mary Hardman Campbell (28 December 1902 – ?).

William enrolled into the Oxford College in October 1913 but went to the World War I fronts the next year. He fought with the Wiltshire Regiment as a Second Lieutenant in the 3rd Battalion (attached 2nd Battalion) starting from October 1914 and was killed in action only a few weeks later.^[2] He was the uncle of Air Chief Marshal Sir Donald Hardman.

Books

Introductory treatise on Lie's theory of continuous transformation groups. Oxford: Clarendon Press. 1903.^[8]
A course of differential geometry. Oxford: Clarendon Press. 1924.^[9]

References

^ h. h (1 January 1925). "John Edward Campbell". Proceedings of the London Mathematical Society. s2-23: lxx–lxxiv. doi:10.1112/plms/s2-23.1.1-w. Retrieved 4 August 2016.
^ ^a ^b ^c William Percy CAMPBELL (1894–1914) Archived 2 July 2011 at the Wayback Machine. St Margaret's War Memorial
^ ^a ^b John Edward Campbell. www-history.mcs.st-and.ac.uk
^ J. Campbell, Proc Lond Math Soc 28 (1897) 381–390; ibid 29 (1898) 14–32.
^ H. Poincaré, Compt Rend Acad Sci Paris 128 (1899) 1065–1069; Camb Philos Trans 18 (1899) 220–255.
^ H. Baker, Proc Lond Math Soc (1) 34 (1902) 347–360; ibid (1) 35 (1903) 333–374; ibid (Ser 2) 3 (1905) 24–47.
^ F. Hausdorff, "Die symbolische Exponentialformel in der Gruppentheorie", Ber Verh Saechs Akad Wiss Leipzig 58 (1906) 19–48.
^ Baker, H. F. (17 November 1904). "Review: Introductory Treatise on Lie's Theory of Continuous Transformation Groups". Nature. 71 (1829): 49–50. doi:10.1038/071049a0. hdl:2027/coo.31924059156061. S2CID 4030417.
^ Stouffer, E. B. (1927). "Review: A Course of Differential Geometry, by J. E. Campbell" (PDF). Bull. Amer. Math. Soc. 33 (5): 625–626. doi:10.1090/s0002-9904-1927-04432-9.

v t e Fellows of the Royal Society elected in 1905
Fellows	John George Adami William Arthur Bone John Edward Campbell William Henry Dines Sir Arthur Mostyn Field Sir Martin Onslow Forster Edwin Stephen Goodrich Sir Frederick Gowland Hopkins George William Lamplugh Ernest William MacBride Francis Wall Oliver Sir David Prain George Frederick Charles Searle Robert John Strutt, 4th Baron Rayleigh Sir Edmund Taylor Whittaker
Foreign	Ludimar Hermann Hendrik Antoon Lorentz Henri Moissan Hugo De Vries

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