21-441: Number Theory


Course Information

Fall 2023
Syllabus
Community Agreement
Meetings: MWF 2-2:50pm, PH 226A
Lecture Notes
Office: Wean Hall 8119
Office Hours: M 1-1:50pm, Tu by appointment
Email: ebellah@andrew.cmu.edu







Course Calendar

Week Material1 Problem Sets 2
1 The FTA and the Multiplicative Group of Z/nZ PS 1:
Ch 1 #3, 4, 8, 9
Ch 2 #1, 3
2 The Multiplicative Group of Z/nZ PS 2:
Ch 2 #6, 8, 9, 10, 11
3 Prime Numbers PS 3:
Ch 3 #1, 3, 4, 5, 7, 8
4 Quadratic Residues PS 4:
Ch 3 # 11, 12(a)
Ch 4 #4, 7
5 Arithmetic Functions PS 5:
Ch 4 # 11
Ch 5 #3, 14, 16, 18
6 Diophantine Analysis I PS 6:
Ch 6 #3, 4, 5, 8
7 Algebraic Number Theory PS 7:
Ch 6 #11
Ch 7 #2, 3, 4
Fall Break: October 16-20
8 Algebraic Number Theory (cont) PS 8:
Ch 7 #5, 6
9 Algebraic Number Theory (cont) PS 9:
Ch 7 #7, 8, 9 and 10
10 Algebraic Number Theory (cont) PS 10:
Ch 7 #12, 13, and 14
11 Diophantine Analysis II PS 11:
Ch 7 #18
Ch 8 #1 and #4
12 Diophantine Analysis II (cont)
13 Final Talks
14 Final Talks


1. Lecture notes will be updated throughout the course. See the timestamp on the coverpage for the latest update.
2. Exercises are assigned from the course lecture notes. See the course syllabus for the submission schedule and the problem set information document for information.
3. The anonymous course feedback form can be found here, and will be reviewed at the beginning of each week.