|Computer Science/Discrete Mathematics Seminar II|
|Topic:||Simplicial complexes as expanders|
|Affiliation:||Member, School of Mathematics|
|Date:||Tuesday, January 28|
|Time/Room:||10:30am - 12:30pm/S-101|
Expanders are highly connected sparse graphs. Simplicial complexes are a natural generalization of graphs to higher dimension, and the notions of connectedness and expansion turn out to have interesting analogues, which relate to the homology and the spectral theory of the complexes. I will explain these notions, and discuss results and problems. No prior knowledge is assumed.