**Date & Time:** September 30, 2015, 16:00-17:00.

**Venue:** Ramanujan Hall

**Title: **The G-closure Problem

**Speaker:** M. Vanninathan, TIFR CAM, Bangalore

**Abstract:** The G-closure problem whose origin is in Material Science,seeks
to know all possible material behaviour that one can obtain by mixing the
known materials in a given volume proportion.In my talk, I discuss one
situation where it arises and its resolution.In particular,I present
mathematical notions and ideas involved in its resolution.Lastly, I
mention how things can be generalized to more complicated
situations.Efforts are made to keep the talk accessible to
non-specialists.