Math 315 - Fall 2007
Abstract Algebra I


Links:    Recent Announcements     Homework     Grade information

Instructor Keith Conrad
Email kconrad at math dot uconn dot edu. (When you send an email message, please identify yourself at the end.)
Office hours MSB  318; Wed. 2—4 or by appointment.
Course info
Lecture T/Th 12:30−1:45 PM, MSB 118.
Midterm:
Final:
 
Text Abstract Algebra, 3-rd ed. (Wiley), by Dummit and Foote. There is a list of errata for the book at Foote's website.
Other references There are notes on group theory at the website of Milne. (The top of the website announces a new version of the group theory notes to appear on Sept. 1.)


Course handouts


Some applications of unique factorization (optional)

Remarks about Euclidean domains (optional)

The Gaussian integers

Zorn's Lemma

Definitions related to rings

Subgroup series

Character theory for finite abelian groups

Simplicity of An

Groups of order 12 (using semidirect products)

Applications of the Sylow theorems

Proof of the Sylow theorems

Cylicity of (Z/(p))×

Decomposing SL2(R) (Optional)

Group Actions

Applications of Cauchy's theorem

Proof of Cauchy's theorem

Dihedral groups II.

Conjugation in a group

Cosets and Lagrange's theorem

Families of groups

Dihedral groups I.

Generating sets for symmetric and alternating groups

Sign of a permutation, symmetric and alternating groups

Subgroups of a cyclic group

Orders of elements in a group


Recent Announcements
11/2: Revision of handout on definitions related to rings, fixing error in definition of ideal.

11/1: Fifth problem set is posted.

10/24: Midterm posted in revised form, with 4th question replaced.

9/7: Second problem set is posted.

8/28: The course begins. First problem set is posted.


Brief course description: This is the first-semester of a year-long course which will prepare graduate students for future work where algebra is needed. In the first semester we will cover topics from group theory, ring theory, and modules. This corresponds to Parts I, II, and some of Part III in the course text.

Prerequisites: Students should know material found in undergraduate books on group theory (Lagrange's theorem, Cauchy's theorem, Sylow theorems, center and conjugacy classes, normal subgroups and quotient groups, homomorphisms and the homomorphism theorems), ring theory (Euclidean domains, PIDs, prime and maximal ideals), and linear algebra (representing linear transformations and bilinear forms as matrices, eigenvalues and eigenvectors, Cayley-Hamilton theorem, Gram-Schmidt process for inner product spaces, diagonalizing real symmetric matrices).

Course grade:  This will be based on the following weighting:

Homework: Homework assignments will be posted on the bottom of this web. Due dates will be marked on each assignment. No late homeworks will be accepted. Exams:  There will be 1 midterm and a final.  



Due Week of Homework Assignment
1.Aug. 27

1. Sept. 3


2. Sept. 10

3. Sept. 17


4. Sept. 24
5. Oct. 1


6. Oct. 8

7. Oct. 15


8. Oct. 22
9. Oct. 29

10. Nov. 5
11. Nov. 12


12. Nov. 19 None (it's Thanksgiving break).
13. Nov. 26

14. Dec. 3



Credit: I respectfully stole the code for much of this page from Glenn Tesler. Thanks, Glenn!