### MAT 311 Problem Sets Number Theory

Spring 2011

There will be 10 weekly problem sets due at the beginning of lecture on Thursday. Problems due one week will often practice material covered in previous weeks. It is important to do the problems in a timely manner; do not postpone problems until the last minute.

### UNDER NO CIRCUMSTANCES WILL LATE HOMEWORK BE ACCEPTED.

In exceptional circumstances such as a documented medical absence, etc., the instructor will drop the missing problem set and compute the problem set total using the remaining problem sets.

You are encouraged to work with other students in the class, but your final write-up must be your own and must be based on your own understanding. Moreover, write-ups must be legible, etc. Write-ups which prove too difficult to read may be marked incorrect or may be returned to the student to be rewritten. All questions regarding grading of a problem set should be addressed to the instructor in a timely fashion.

• Problem Set 1 is due Thursday, February 10
Section 1.2. Exercises 15, 32, 47.
Section 1.3. Exercises 11, 26, 31, 42.
• Problem Set 2 is due Thursday, February 17
Section 2.1. Exercises 10, 34, 38, 56.
Section 2.2. Exercises 11, 12.
• Problem Set 3 is due Thursday, February 24
Section 2.3. Exercises 3, 14, 25.
Section 2.6. Exercises 3, 6, 9.
• Problem Set 4 is due Thursday, March 3
Section 2.7. Exercise 6.
Section 2.8. Exercise 36. This is a long problem with many parts. If you get stuck on one part, you may assume that part in later parts (for partial credit).
• Problem Set 5 is due Thursday, March 17
Section 3.1. Exercises 10, 11, 21.
Section 3.2. Exercises 7, 15, 16.
• Problem Set 6 is due Thursday, March 24
Section 5.1. Exercises 2, 3, 12.
Section 5.2. Exercises 1, 2, 4.
• Problem Set 7 is due Thursday, March 31
Section 3.4. Exercises 4, 8, 9.
Section 3.5. Exercises 1, 3, 5.
• Problem Set 8 is due Thursday, April 7
Section 5.3. Exercises 10, 11.
Section 5.4. Exercises 4, 12, 13.
• Problem Set 9 is due Thursday, April 28
Here is a PDF files with the instructions for this week's problem set.
• Problem Set 10 is due Thursday, May 5
Section 9.1. Exercises 5, 7.
Section 9.2. Exercises 1, 3.
Section 9.3. Exercises 2, 4.

Jason Starr
4-108 Math Tower
Department of Mathematics
Stony Brook University
Stony Brook, NY 11794-3651
Phone: 631-632-8270
Fax: 631-632-7631
Jason Starr