**Date & Time:** Saturday, August 23, 2008, 10:30-11:30.

**Venue:** Room 114

**Title:** A Simple Topological Invariant with Interesting Applications

**Speaker:** R. R. Simha, TIFR (retd.)

**Abstract:** We study the group of continuous maps of a compact space
*K* into the unit circle under an obvious equivalence relation and give
two interesting applications to Jordan curve theorem and fundamental
group of compact Lie groups. The lecture will be accessible to M. Sc.
students.