Mathematician:Emma Markovna Lehmer

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Emma Markovna Lehmer (née Trotskaia) was a Russian-born mathematician active mainly in the field of number theory.

The wife of Derrick Henry ("Dick") Lehmer, with whom she was a frequent collaborator.

Also an accomplished pianist.


Russian-born, later American


  • Born: November 6, 1906, Samara, Russian Empire (between 1935 and 1991 known as Kuybyshev)
  • Died: May 7, 2007, Berkeley, California, USA

Theorems and Definitions

  • There isn't, but there really ought to be, an Emma Lehmer Lemma.


  • 1930: A Numerical Function Applied to Cyclotomy (PhD thesis)
  • 1935: On a resultant connected with Fermat's Last Theorem
  • 1939: Topological Groups (by Pontryagin: translation from Russian into English)
  • 1941: On the first case of Fermat's Last Theorem (with Dick Lehmer)
  • 1971: On the Quadratic Character of Some Quadratic Surds
  • 1978: Rational reciprocity laws