The story of the most productive collaborations in mathematical history: http://www.gresham.ac.uk/lectures-and-events/hardy-littlewood-and-ramanujan
The collaboration between G.H. Hardy (1877-1947) and J.E. Littlewood (1885-1977) was the most productive in mathematical history. Dominating the English mathematical scene for the first half of the 20th century, they obtained results of great influence, most notably in analysis and number theory. Into their world came the brilliant and intuitive mathematician, Srinivasa Ramanujan (1887-1920), who left India to work with Hardy until his untimely death at the age of 32.
The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/hardy-littlewood-and-ramanujan
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