Topology (191) course, Winter 2004

Topology (191) course, Winter 2004


Currently: Monday-Wednesday-Friday from 2.00-2.50 in room HSS 2305A.

Lecturer: Justin Roberts

Last term in 190 I taught the more visual, combinatorial side of topology in the guise of knot theory. It seems to me best to introduce people to some of the genuine applications and "real-world" phenomena before beginning the more abstract foundational material.

This term we will return to those foundations: the course will be initially a traditional first course in topology covering ``point-set topology'': the study of metric and topological spaces, continuity, compactness, connectedness, and other properties beginning with ``c''. This branch of the subject is really just a part of analysis, and it is very important for the foundations of the subject. Although it can seem quite abstract, it will help you learn to write proofs properly. I hope that the course will help you in general to appreciate and produce ``good mathematics'' at whatever level is appropriate.

The intended sequence of topics is:

1. Point-set topology
2. The fundamental group
3. Two-dimensional surfaces and their classification
4. Various topics: probably some hyperbolic geometry, some of the theory of covering spaces, and some theory of 3-dimensional manifolds.

Pre-requisites

To be honest, you don't need to know much to get started in this course! The previous course Knot theory (190) is certainly not needed, though it will of course help conceptually in places. We will touch on some areas of analysis, group theory and geometry which might be covered in other undergrad courses (140, 100, 150 I think) so those could certainly be useful.

Books

I never work from a book. However, the first part of the course on point-set things is very well-explained in

M. Armstrong, Basic Topology (1983, Springer-Verlag).

The second part on surfaces is contained in the notes for the course I gave in Edinburgh, which are available by clicking here.


``Knots knotes'' in gzipped postscript.




``Knots knotes'' in pdf.


Additional Information

My office hours are Monday 5.30 - 6.30 and Friday 11-12 in room 7210 in APM.

Midterm will be on February 9th in class.

Homeworks will be set most weeks on Mondays and be due the following Monday in the lecture. The list of problems will be maintained here: Homework problems

Grading will be 25% homework, 25% midterm, 50% final.




justin@math.ucsd.edu