John Friedlander FRSC is a Canadian mathematician specializing in analytic number theory.

In addition to his individual work, he has been notable for his collaborations with other well-known number theorists, including Enrico Bombieri, William Duke, Andrew Granville, and especially Henryk Iwaniec.

[1] In 1997, in joint work with Henryk Iwaniec, Friedlander proved that infinitely many prime numbers can be obtained as the sum of a square and fourth power: a2 + b4.

[2][3] Friedlander and Iwaniec improved Enrico Bombieri's "asymptotic sieve" technique to construct their proof.

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