|Hermann Weyl Lectures|
|Topic:||High Dimensional Expansion and Error Correcting Codes|
|Affiliation:||Weizmann Institute of Science|
|Date:||Tuesday, November 19|
|Time/Room:||2:00pm - 3:00pm/Simonyi Hall 101|
High dimensional expansion generalizes edge and spectral expansion in graphs to higher dimensional hypergraphs or simplicial complexes. Unlike for graphs, it is exceptionally rare for a high dimensional complex to be both sparse and expanding. The only known such expanders are number-theoretic or group-theoretic.