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Kaapi with Kuriosity
Eknath Ghate (TIFR, Mumbai)
4:00 pm to 6:00 pm Sunday, 10 February 2019
J. N. Planetarium, Sri T. Chowdaiah Road, High Grounds, Bangalore

The sequence of numbers 1, -24, 252, -1472, 4830, ... was extensively studied by the great Indian mathematician Ramanujan almost a century ago. These numbers - the values of Ramanujan's tau-function - have been the guiding force behind several themes in Number Theory. They continue to tantalize us with easy-to understand problems some of which are still open today. This talk will be a relaxed introduction to these numbers and will lead up to some of our own results about them.