On the geometry and topology of initial data sets in General Relativity
Speaker: Greg Galloway (University of Miami) Title: On the geometry and topology of initial data sets in General Relativity Abstract: A theme of long standing interest (to the speaker!) concerns the relationship between the topology of spacetime and the occurrence of singularities (causal geodesic incompleteness). Many results concerning this center around the notion of topological censorship, which […]
Quality Externalities on Platforms: The Case of Airbnb
Speaker: Sonia Jaffe (Microsoft) Title: Quality Externalities on Platforms: The Case of Airbnb Abstract: We explore quality externalities on platforms: when buyers have limited information, a seller's quality affects whether her buyers return to the platform, thereby impacting other sellers' future business. We propose an intuitive measure of this externality, applicable across a range of platforms. Guest Return […]
Hyperbolic geometry of the olfactory space
Speaker: Tatyana Sharpee (Salk Institute for Biological Studies) Title: Hyperbolic geometry of the olfactory space Abstract: The sense of smell can be used to avoid poisons or estimate a food’s nutrition content because biochemical reactions create many by-products. Thus, the presence of certain bacteria in the food becomes associated with the emission of certain volatile compounds. This perspective suggests that […]