Homework: Reading and Problem Sets

Math 410, Spring 2026
Rob Benedetto


All section and problem numbers are from Cox, Galois Theory, 2nd edition.

Videos may be found on the Math-410 moodle site.

This table will grow as the semester progresses and more problem sets are assigned.

All sets due on Gradescope at 11:59pm ET on their due dates.

(Think of that as 11:49pm, allowing at least 10 minutes to submit on Gradescope and assign pages to problems.)

Click here for more homework rules.

Reading, Videos, and Problem Sets
Set
Number
Due Sections
to Read
Videos
to Watch
Problem
Sheet
Solutions
0 Wed,
Jan 28
-- -- Homework 0 N/A
1 Fri,
Jan 30
1.1, 1.2 Video 1: Ferrari and
    the Quartic
Video 2: Review of
    Polynomial Rings
Homework 1 Solutions to Homework 1
2 Wed,
Feb 4
2.1, 2.2 Video 3: Monomial Ordering
    and Symmetric Polynomials
Homework 2 Solutions to Homework 2
3 Wed,
Feb 11
A.4, 2.4,
3.1, 3.2,
4.1
Video 4: Group Actions
Video 5: Adjointing Roots
    via Quotient Rings
Video 6: On Complex Roots
Homework 3 Solutions to Homework 3
4 Wed,
Feb 18
4.1, 4.2, 4.3 Video 7: Some Proofs on
    Adjoining Elements
[Optional Video 8: Proof of
    Eisenstein's Criterion]
[Optional Video 9: Straightedge
    and Compass]
Homework 4 Solutions to Homework 4
5 Wed,
Feb 25
4.4, 5.1 Video 10: Algebraic over
    Algebraic
[Optional Video 11:
    Algebraic Integers]
Video 12: Splitting Field
    Degree
Homework 5 Solutions to Homework 5
6 Wed,
Mar 4
5.2, 5.3 Video 13: Mapping One Root
    to Another
Video 14: Normal and Splitting
[Optional Video 15: An
    Alternative Normality Proof]
Video 16: Definining
    Separability
Homework 6 Solutions to Homework 6
7 Wed,
Mar 11
5.3, 5.4 Video 17: Separable Degree,
    Part 1
Video 18: Separable Degree,
    Part 2
Homework 7 Solutions to Homework 7
8 Wed,
Apr 1
6.1, 6.2, 6.3 Video 19: Another Proof
    of Galois Degree
Video 20: Galois as
    Permutations
Video 21: Semidirect Products
Homework 8 Solutions to Homework 8
9 Wed,
Apr 8
6.4, 7.1, 7.2 Video 22: The Universal Extension
Video 23: More Fixed Field Results
Homework 9 Solutions to Homework 9
10 Wed,
Apr 15
7.2, 7.3, 7.4 [Optional Video 25: Counting
    Conjugate Fields]
[Optional Video 26: Infinite
    Galois Extensions]
Video 27: Another Proof of a
    Key Lemma
Homework 10 Solutions to Homework 10
11 Wed,
Apr 22
8.1, 8.2, 8.3 Video 28: Finitely Many
    Intermediate Fields
Video 29: A Function Field Fact
[Optional Video 30: Some Advanced
    Group Theory Results]
Video 31: Radical vs Solvable
Homework 11 Solutions to Homework 11
12 Wed,
Apr 29
8.3, 8.4, 9.1 Video 32: Galois and Radical
Video 33: A Solvability Lemma
Video 34: A Galois Degree Lemma
Homework 12 Solutions to Homework 12
13 Tue,
May 5
9.1, 11.1, 11.2 Video 35: Cardano, Ferrari, Radical, Solvable
Video 36: A Cyclotomic Galois Group
Video 3y: Cyclic Multiplicative Group
Homework 13 Solutions to Homework 13



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