# Leonard Roth

Not to be confused with Klaus Roth.

**Leonard Roth** (29 August 1904 Edmonton, London, England – 28 November 1968 Pittsburgh, Pennsylvania) was a mathematician working in the Italian school of algebraic geometry. He introduced an example of a unirational variety that was not rational (though his proof that it was not rational was incomplete).

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

## Publications

- Levy, H.; Roth, L. (1936),
*Elements of probability*, The Clarendon press - Roth, L. (1949),
*Modern elementary geometry*, Modern Elementary Geometry, Thomas Nelson and Sons Ltd. - Roth, L. (1955),
*Algebraic threefolds, with special regard to problems of rationality*, Ergebnisse der Mathematik und ihrer Grenzgebiete (N.F.), Heft 6, Berlin, New York: Springer-Verlag, MR 0076426 - Semple, J. G.; Roth, L. (1985),
*Introduction to algebraic geometry*, Oxford Science Publications, The Clarendon Press Oxford University Press, MR 814690

## References

- O'Connor, John J.; Robertson, Edmund F., "Leonard Roth",
*MacTutor History of Mathematics archive*, University of St Andrews. - Segre, Beniamino (1976), "Leonard Roth",
*The Bulletin of the London Mathematical Society*,**8**(2): 194–202, doi:10.1112/blms/8.2.194, ISSN 0024-6093, MR 0398747 - Togliatti, E. (1970), "Leonard Roth",
*Bollettino dell'Unione Matematica Italiana (4)*,**3**: 326–332, MR 0260551

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