## EVENT DETAILS AND ABSTRACT

**Colloquium**
**Title:** Trisecting the angle: Alain Connes' proof of Morley's theorem

**Speaker:** Jeff Lagarias

**Speaker Info:** AT&T Labs

**Brief Description:**

**Special Note**:

**Abstract:**

Morley's theorem states that, given a triangle, the
trisectors of the three interior angles determine three points of
intersection inside the triangle which form an
equilateral triangle. Since its discovery in 1904,
many proofs have been found. In 1998 Alain Connes found an
intriguing new proof of Morley's theorem. This talk
presents this proof, and the history of this problem
and related problems in geometry. The talk will contain
digressions, in the spirit of Philip K. Davis' book
"The Thread: A Mathematical Yarn."

**Date:** Friday, February 21, 2003

**Time:** 4:00pm

**Where:** Lunt 105

**Contact Person:** Prof. Eric Zaslow

**Contact email:** zaslow@math.northwestern.edu

**Contact Phone:** 847-467-6447

Copyright © 1997-2024
Department of Mathematics, Northwestern University.