Title: High-dimensional Expanders
Speaker: Ori Parzanchevski, Institute for Advanced Study
Date: Tuesday, March 11, 2014 2:00pm
Location: Hill Center, Room 525, Rutgers University, Busch Campus, Piscataway, NJ
Expanders are highly connected sparse graphs, which have many interesting properties and applications. In the last decade several generalizations of expanders to simplicial complexes (or hypergraphs) were suggested, based on ideas in combinatorics, geometry, spectral theory and dynamics. I will present some of these notions of high dimensional expansion, and some relations between them. No prior knowledge is assumed.