**Date & Time:** Wednesday, April 06, 2016, 16:00-17:00.

**Venue:** Ramanujan Hall

**Speaker:**Dipendra Prasad,

School of Mathematics, TIFR Mumbai

**Title:** Arithmetically equivalent number fields, and its refinement

**Abstract:** The zeta function of a number field carries a lot of information
about the number field. A well-known question asks which number fields can
have the same zeta functions. We consider this question, and discuss a
refined equivalence.