The Power of q pp 179-184 | Cite as

A Letter from Fitzroy House

  • Michael D. HirschhornEmail author
Part of the Developments in Mathematics book series (DEVM, volume 49)


In 1917 or 1918, Ramanujan sent Hardy a letter in which he proposed an approach to Waring’s problem for fourth powers. He began the letter with a beautiful and important identity. A proof of this identity is given.

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.School of Mathematics and StatisticsUniversity of New South WalesSydneyAustralia

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