Math 5510 – Introduction to Topology and Geometry
Instructor: Mladen Bestvina

Room: LCB 225

Time: MWF 10:45-11:35

Office: JWB 210

Office Hours: M 9:30-10:30 or by appointment.


Textbooks:
Allen Hatcher's notes. This is a good text for general topology.
The standard book for general topology is Munkres: Topology (amazon), but it is very expensive and we won't go
into the subject in the same detail, as we will also study geometric aspects of topology. So you are not required to purchase it.

Prof. Toledo's notes for this class. The beginning has more information about metric spaces than we talked about in class.

A proof that compactness and sequential compactness are equivalent in metric spaces.

Bent Petersen's notes on the contraction principle.

Michael Mueger's notes for a general topology course.

John Stillwell: Geometry of Surfaces (amazon). We'll cover chapters 1 and 2. Chapter 1 is about the classification of Euclidean isometries, and an alternative reference is:

Classification of Euclidean isometries: notes

You can contact me by email.


Description: Math 5510 and 5520 form a sequence covering the basic concepts in topology and geometry. The first semester covers the following topics: The second semester usually covers hyperbolic geometry, basic algebraic topology and the classification of surfaces.

Homework: It will be assigned and collected in class roughly every 2 weeks.

Exams: There will be two midterms, on Sep 30 and Nov 11. The comprehensive final exam is on Friday, Dec. 20, 2013, 10:30 am - 12:30 pm

Grading: Homework (drop lowest 2): 35%, Midterms: 40%, Final 25%.

ADA: The Americans with Disabilities Act requires that reasonable accommodations be provided for students with physical, cognitive, systemic, learning, and psychiatric disabilities. Please contact me at the beginning of the semester to discuss any such accommodations you may require.


Homework 1, due Sept 13.
Homework 2, due Sept 27: Hatcher, p.28: #1,3,4,5,6. Extra credit #7. In addition, extra credit problem from the class: Find a subset A of R so that the number of sets you can produce from A by iteratively taking closure and complement is maximal possible (14).
Homework 3, due Oct 11: Hatcher, p.42: #5,6 (only the second half, we did the first half in class),8,10,15. Extra credit: #11,16.
Homework 4, due Nov 1: Hatcher p.52: #1-4. Extra credit: Show that the Cantor set C is homogeneous, i.e. that for any x,y in C there is a homeomorphism h:C->C such that h(x)=y. Hint: Think of the infinite product of {0,2}.
Homework 5, due Nov 25.
Homework 6, due Dec 9.