Monthly Archives: January 2012

AGRA: school in Arithmetic, Groups and Analysis

It’s a pleasure to present (es un placer anunciar…) the website for AGRA. This is a two-week school (first half of April 2012) on number theory and associated fields. The place is Santiago, Chile; all courses will be given in … Continue reading

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Four squares: Jacobi, Ramanujan,…

What are the nicest proofs of Jacobi’s four-square theorem you know? (Constraint: I would like something that can be presented in two hours to a group of highly motivated students with a reasonably solid background in complex analysis but little … Continue reading

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