Peter Johnstone (mathematician)

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Peter Tennant Johnstone (born December 28, 1948) is Professor of the Foundations of Mathematics at the University of Cambridge, and a fellow of St. John's College.[2] He invented or developed a broad range of fundamental ideas in topos theory. His thesis, completed at the University of Cambridge in 1974, was entitled "Some Aspects of Internal Category Theory in an Elementary Topos".[3]

Peter Johnstone
A picture of Johnstone taken at Cambridge in 1978.
Johnstone in 1978
Born (1948-12-28) December 28, 1948 (age 75)
Alma materUniversity of Cambridge
Known forCategory theory
Topos theory
Logic
AwardsWhitehead Prize (1979)[1]
Scientific career
FieldsMathematics
Thesis Some Aspects of Internal Category Theory in an Elementary Topos  (1974)
Doctoral advisorJohn Frank Adams

Peter Johnstone is a choral singer, having sung for over thirty years with the Cambridge University Musical Society and since 2004 with the (London) Bach Choir. Following a severe bout of COVID-19 in 2020, he was invited by the Bach Choir's musical director David Hill to provide the text for a new choral work about the pandemic which the Choir commissioned from the composer Richard Blackford; the piece, `Vision of a Garden', was performed at the Bach Choir's first post-lockdown concert in October 2021 in the Royal Festival Hall, london, and again in July 2023 in King's College Chapel, Cambridge.[4]

He is a great-great-great nephew of the Reverend George Gilfillan who was eulogised in William McGonagall's first poem.[5]

Books

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  • Johnstone, Peter (1977), Topos Theory, Academic Press, ISBN 978-0-12-387850-2, Zbl 0368.18001.
— "[F]ar too hard to read, and not for the faint-hearted"[6]

References

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  1. ^ The list of Whitehead Prize winners, retrieved 2019-10-10.
  2. ^ "Fellows of St. John's College 2009". Cambridge University Reporter. 2 October 2009.
  3. ^ "The Mathematics Genealogy Project - Peter Johnstone".
  4. ^ Fullbrook, Danny (19 July 2023). "Addenbrooke's patient performs Covid-inspired choral music". BBC News. Retrieved 19 May 2024.
  5. ^ Hunt, Chris, William McGonagall: Collected Poems, Birlinn, 2006, px
  6. ^ An anonymous referee, as quoted by Johnstone in his Sketches of an elephant, p. ix.
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