Algebraic Topology, by Hatcher

Professor Alexandru I. Suciu

Topology and Geometry, by Bredon

MTH G221 Topology 2    

Fall 2005

* Course Information

Course:   MTH G221 -- Topology 2
Web site:   https://web.northeastern.edu/suciu/G221/top2.fa05.html
Instructor:   Prof. Alex Suciu   < a.suciu@neu.edu >
Time and Place:   Mon. & Th., 10:00 - 11:30 am, in 544 NI
Office Hours:   Mon. & Th., 11:30 am - 12:30 pm, or by appointment -- in 441 Lake
Prerequisites:   MTH G121 Topology 1
Textbook:   Algebraic Topology by Allen Hatcher, Cambridge University Press, 2002
Supplement: Topology and Geometry, by Glen Bredon, Springer-Verlag, GTM #139, 1997.
Grade:   Based on problem sets, exams, and class participation

* Course Description

This course provides an introduction to the concepts of Algebraic Topology, with an emphasis on homological methods, and with applications to problems in homotopy theory, geometry and combinatorics. It consists of three inter-connected parts:
1. Homology Theory and CW Complexes
Starts with simplicial complexes and simplicial homology groups. Proceeds to singular homology, homological algebra (exact sequences, axioms), Mayer-Vietoris sequence, CW-complexes and cellular homology, calculation of homology of cellular spaces, and homology with coefficients.
2. Cohomology Theory
Cohomology groups, universal coefficients theorems, Bockstein homomorphism, Künneth formula, cup and cap products, Hopf invariant, Borsuk-Ulam theorem, Brouwer and Lefschetz-Hopf fixed-point theorems.
3. Manifolds and Duality
Orientation bundle, Poincaré duality, Lefschetz duality, Alexander duality, Euler class, Lefschetz numbers, Gysin sequence, intersection form, and signature.
For more information, see some older syllabi, from 1998, 1999, 2003, and 2004. You may also want to look at some past qualifying exams in Topology, based in part on the material covered in this course.
Fort the first homework, I recommend using the Simplicial Homology package, which runs under GAP. (The software is already installed on our network.)

* Homework Assignments

Homework Due date Section Page Problems
1 September 22 Hatcher 2.1 131 4, 5, 6, 7, 9
2 October 3 Hatcher 2.1 132 14, 16, 17, 18, 19
3 October 23 Hatcher 2.1 133 26, 29
Hatcher 2.2 157-158 26, 28, 29
4 November 7 Hatcher 2.2 156-157 9, 10, 12, 13, 20, 21
5 November 28 Hatcher 3.A 267 1
Hatcher 3.1 204-206 3, 6, 11
Hatcher 3.2 228 1, 2
6 December 16 Hatcher 3.3 257-260 2, 3, 5, 10, 11, 25, 26


Department of Mathematics  Office:  441 Lake Hall  Messages:  (617) 373-2450 
Northeastern University Phone:  (617) 373-4456  Fax:  (617) 373-5658
Boston, MA, 02115  E-Mail:  a.suciu@neu.edu Directions

Home   Started:  August 14, 2005
Last modified:  December 8, 2005
URL:  https://web.northeastern.edu/suciu/G221/top2.fa05.html