Leonard Roth (29 August 1904 – 28 November 1968) was a mathematician working in the

Italian school of algebraic geometry In relation to the history of mathematics, the Italian school of algebraic geometry refers to mathematicians and their work in birational geometry, particularly on algebraic surfaces, centered around Rome roughly from 1885 to 1935. There were 30 ...

. He introduced an example of a

unirational variety In mathematics, a rational variety is an algebraic variety, over a given field ''K'', which is birationally equivalent to a projective space of some dimension over ''K''. This means that its function field is isomorphic to :K(U_1, \dots , U_d), t ...

that was not rational (though his proof that it was not rational was incomplete). Roth was born in

Edmonton, London Edmonton is a town in north London, England within the London Borough of Enfield, a Districts of England, local government district of Greater London. The northern part of the town is known as Lower Edmonton or Edmonton Green, and the southern ...

. He was educated at

Latymer Upper School Latymer Upper School is a public school in Hammersmith, London, England, on King Street. It derives from a charity school, and is part of the same 1624 Latymer Foundation, from a bequest by the English legal official Edward Latymer. There ...

Dulwich College Dulwich College is a 2-18 private, day and boarding school for boys in Dulwich, London, England. As a public school, it began as the College of God's Gift, founded in 1619 by Elizabethan actor Edward Alleyn, with the original purpose of ...

and

Clare College, Cambridge Clare College is a Colleges of the University of Cambridge, constituent college of the University of Cambridge in Cambridge, England. The college was founded in 1326 as University Hall, making it the second-oldest surviving college of the Unive ...

, where he graduated as a Wrangler in 1926.John J. O'Connor and

Edmund F. Robertson Edmund Frederick Robertson (born 1 June 1943) is a British mathematician who is a professor emeritus of pure mathematics at the University of St Andrews. Work Robertson is one of the creators of the MacTutor History of Mathematics archive, a ...

"Leonard Roth"
'' MacTutor History of Mathematics archive''. Accessed 20 April 2020. He died in 1968 in

Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...

. His sister was Queenie Roth, literary critic and wife of

F. R. Leavis Frank Raymond "F. R." Leavis ( ; 14 July 1895 – 14 April 1978) was an English literary critic of the early-to-mid-twentieth century. He taught for much of his career at Downing College, Cambridge, and later at the University of York. Leav ...

Publications

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Publications

References

Further reading