Meets:    MWF 11:00-11:50am, BU 24
Instructor:    Eric Moorhouse,  Ross Hall 216

We are now meeting in our new location BU24. Come to the basement of the Business College for our class.

Links/Handouts

•   Syllabus/Policies
•   Lecture Slides/Videos/Computer sessions
•   Classroom Climate and Conduct
•   UW Regulation 2-114 on Academic Dishonesty
•   Review on basic terminology and results; and some notation for group actions
•   Free Groups
•   J. Simon Richard's program for building Schreier graphs. Sadly, it seems that the python code is no longer available...
•   Two examples of isometry groups G(l,m,n) acting on the hyperbolic plane, preserving periodic tiling by congruent triangles
•   Homework. Submit solutions on WyoCourses. Start by submitting a solution to one problem that interests you, then try some others and submit them individually as you solve them. Check back later for additional problems, hints, comments, and corrections. Email me with corrections.
•   Open Problem Garden. I will highlight one open problem of particular interest.

/ revised October, 2025