** "Geometry and Analysis on Groups" Research Seminar **

**Time:** 2018.12.04, 15:00–17:00

**Location:** Seminarraum 8, Oskar-Morgenstern-Platz 1, 2.Stock

**Title:** "Revisiting Leighton's graph covering theorem."

**Speaker:** Daniel
Woodhouse (Technion)

**Abstract:**
Leighton's graph covering theorem states that two finite graphs with
isomorphic universal covers have isomorphic finite covers.
I will discuss a new proof that involves using the Haar measure to
solve a set of gluing equations.
I will discuss generalizations to graphs with fins, and applications to quasi-isometric rigidity.