Fall
2025:
MATH 171
Abstract Algebra
Handouts
Course announcement: PDF
Syllabus (in .html format): Math 171
Homeworks
(due in class every Thursday except when
explicitly noted otherwise)
It is understood implicitly that reading the respective
sections from the book (as well as any supplementary materials
that may be provided) and carefully reviewing the lecture notes
is a part of your homework assignment.
Show all work on
your homework solutions - it is not the correct answer you are
graded on, it is the solution and details of the proof. Please
write neatly, and present your solution/proof accurately.
Please check this page regularly
- assignments and due
dates may change depending on the class progress.
HW #1, due 9/11/25:
Sec. 0.3, ## 3, 6, 9, 11, 12
Sec. 1.1, ## 1, 5, 6, 8, 9, 12, 17, 20, 25, 31
HW #2, due 9/18/25:
Sec. 1.2, ## 1, 2, 3, 6, 16
Sec. 1.3, ## 2, 5, 6, 10, 14, 15
HW #3, due 9/25/25:
Sec. 1.4, ## 4, 5, 7
Sec. 1.5, # 3
Sec. 2.1, ## 1(b, e), 4, 5, 8, 10(a), 11, 12
HW #4, due 10/2/25:
Sec. 1.6, ## 3, 4, 7, 9, 16, 17, 19, 20, 25, 26
Sec. 1.7, ## 4, 6, 16, 17, 18, 19
HW #5, due 10/16/25:
Sec. 2.2, ## 5, 6, 7, 10, 11
Sec. 2.3, ## 16, 23, 24, 25
HW #6, due 10/23/25:
Sec. 3.1, ## 1, 4, 5, 22(a), 24, 40, 41
Sec. 3.2, ## 4, 5, 6, 8, 11, 15, 16, 17, 18, 22
HW #7, due 10/30/25:
Sec. 3.3, ## 2, 3, 7, 8
Sec. 3.4, ## 4, 7
Sec. 3.5, ## 3, 4, 5, 9 (Note: V_4 is the Klein-4 group -- it is
isomorphic to Z/2Z x Z/2Z; see p. 68 of your book)
HW#8, due 11/13/25:
Sec. 4.2, ## 1, 2, 3, 9
Sec. 4.3, ## 2, 5, 8
HW#9,
due 11/20/25:
Sec. 4.4, ## 1, 6, 7
Sec. 4.5, ## 3, 5, 13, 16, 17
HW#10,
due 12/4/25:
Sec. 7.1, ## 4, 5, 7, 12, 14
Announcements
Weekly mentoring hours with the TA Ethan
Schlegel (ethan.schlegel@cgu.edu) -- TBA.