MAT 423 Assignments

Highlighted assignments are due soon.

 

Due Date

Assignments
7 DecExercises 5.44, 5.61, 5.65
2 DecExercises 5.18, 5.20, 5.21, 5.25, 5.26, 5.27, 5.28, 5.29, 5.30, 5.31
16 NovTeam Assignment 2, downloadable here
9 NovExercises 4.16, 4.17, 4.18, 4.21, 4.22, 4.33
Read Exercises 4.27, 4.29, 4.30, 4.31
2 NovRead Consequences of isomorphism (pp. 82-86)
Exercises 3.82, 3.84, 3.85, 3.86
31 OctRead Homomorphisms (pp. 76-80)
26 OctExercises 3.46, 3.48, 3.59, 3.62, 3.64, 3.69
Read Exercises 3.63, 3.70
Read "Solvable" groups (pp. 67-71)
19 OctExercises 3.30, 3.32
12 OctRead Cosets (pp. 52-56) and Lagrange's Theorem (pp. 57-59)
Exercises 3.14, 3.19, 3.20
5 OctExercises 2.41, 2.57, 2.59, 2.62
Note: There is a nasty typo on Exercise 2.57. It should read:
Let n ∈ N+ and Ω the set of n-th roots of 1 [not -1.]
(a) Verify that if n = 4 [not 2], then Ω = {1,i,-1,-i}, where i is the square root of -1.
(b) Show that Ω is a group with n elements. (You may use, without proof, the facts that (i) Ω contains the roots of xn - 1 [not xn + 1], and (ii) there are exactly n such roots.)
28 SepExercises 2.12, 2.13, 2.16, 2.17, 2.33
21 SepExercises 1.59, 1.60, 1.61
19 SepRead Groups (pp. 22-26)
14 SepExercises 1.43, 1.46, 1.47
12 SepRead Direct products and isomorphism (pp. 15-20)
7 AugExercises 1.22, 1.23, 1.25, 1.27
31 AugRead Integers, monomials, and monoids (pp. 11-14)
29 AugRead Three interesting problems (pp. 1-2) and Some facts about the integers (pp.5-10)