09/11/2009, Monday, 16:30–17:30 Room P3.10, Mathematics Building A. Strominger and A. Sen, . Video Talks: Quantum Gravity in Three Dimensions & Extremal Black Holes and $\operatorname{AdS}_2/\operatorname{CFT}_1$ Correspondence Video Talks by Andrew Strominger and Ashoke Sen @ Strings 2008