**Up:**
Winter 2006 Schedule

**Instructor**.
Jon McCammond

**Office hours**.
**Phone number**.
* 893-2060* (no machine)

**E-mail**.
`
jon.mccammond@math.ucsb.edu`

**My Home Page**.
`
http://www.math.ucsb.edu/~jon.mccammond/`

**Course Home Page **.
`
http://www.math.ucsb.edu/~jon.mccammond/courses/winter06/227B/`
Math 227 is a topics course in topology, broadly defined. The topic
changes from quarter to quarter. Three of the simplest types of
infinite groups are free groups, surface groups and free abelian
groups. This course focuses on the automorphism groups of finite
graphs, closed orientable surfaces and n-dimensional tori. The
approach will be to survey major results and to highlight some of the
key underlying techniques, such as actions on R-trees and the
construct of spaces such as outer space and the curve complex.

**Contents**

**Syllabus**

**Homework List**

**Resources**

*
Last Modified on 28/Feb/06 by
jon.mccammond(at)math.ucsb.edu.
*