Abstract Algebra: Math 521B, Spring 2009
Schedule



Schedule

My best approximation.

Day Topics Preparation
Fri. 1/23 Introduction, groups.
Defintions and first properties.
Sec. 7.1-2
Mon. 1/26 Lots of examples of groups.
D_n , S_n , (Z_n, +) , U_n
Order of an element.
Sec. 7.1-2
Wed. 1/28 Order of an element. See 7.2: #25, 29, 30, 31.
Subgroups
Sec. 7.2-3
Fri. 1/30 Examples of Groups and Subgroups Sec. 7.3
Mon. 2/2 Homomorphisms and related subgroups. Sec. 7.3-4
Wed. 2/4 Isomorphisms and automorphisms. Sec. 7.4
Fri. 2/6 Isomorphisms and automorphisms. Sec. 7.4
Mon. 2/9 Cayley's theorem.
Cosets and Congruence
Sec. 7.4
Sec. 7.5
Wed. 2/11 Lagrange's theorem.
Classification of groups of order <8.
Sec. 7.5
Fri. 2/13 Cosets. Sec. 7.6
Mon. 2/16 Normal subgroups. Sec. 7.6
Wed. 2/18 Quotient groups. Sec. 7.7
Fri. 2/20 Some exercises on normal subgroups. Sec. 7.6-8
Mon. 2/23 The three isomorphism theorems. Sec. 7.6-8
Wed. 2/25 More on the isomorphism theorems.
Sec. 7.6-8
Fri. 2/29 Miscellaneous problems
The groups D_n .
Sec. 8.1
Mon. 3/2 EXAM. Sec. 7.1-8
Wed. 3/4 Groups of order 2p
Direct products.
Sec. 8.1
Fri. 3/6 More on direct products
Finite abelian groups, p -groups.
Sec. 8.2
Mon. 3/9 Miscellaneous topics.
Internal direct product theorem
Sec. 7.7,8
Sec. 8.1
Wed. 3/11 Fundamental Theorem of finite abelian groups.
Factorization of p -groups.
Sec. 8.2
Fri. 3/13 Invariant factor decomposition. Sec. 8.2
Mon 3/16 The symmetric group, S_n . Sec. 7.9
Wed. 3/18 The alternating group, A_n . Sec. 7.9
Fri. 3/20 A_n is simple. Sec. 7.10
Mon. 3/13 Sylow theorems. Sec. 8.3
Wed. 3/25 Sylow theorems for classification. Sec. 8.5
Fri. 3/27 Proof of Sylow theorems. Sec. 8.4
Mon. 4/6 The field of quotients of an integral domain. Sec. 9.4
Mon. 4/8 Classification of groups, semi-direct products, extensions.
Problems on groups.
Bring questions.
Sec. 8.5
Sec. 8.3 #1-7,
Fri. 4/10 EXAM. Sec. 7.6-10, 8.1-4
Mon. 4/13 Vector spaces over a field. Sec. 10.1
Wed. 4/15 Polynomial rings over a field.
Division and the GCD. Roots and remainders.
Sec. 4.1-2, 4
Fri. 4/17 Polynomial rings over a field.
Irreducibles and unique factorization.
Sec. 4.3-4.
Mon. 4/20 Irreduciblity in Q[x]. Sec. 4.5.
Wed. 4/22 F[x]/ p(x) for p(x) irreducible.
Adjoining roots.
Ch. 5
Fri. 4/24 F_3[x]/ x^2+ 2x +2 in all its glory. Ch. 5
Mon. 4/27 Algebraic, transcendental elements.
Extension fields.
Sec. 10.2, 3
Wed. 4/29 Composition of extensions
Splitting fields.
Sec. 10.3-4
Fri. 5/1 Finite fields. Sec. 10.6
Mon. 5/4 Questions?. Ch. 10, Ch. 4-5.
Wed. 5/6 EXAM. Ch. 10, Ch. 4-5.
Fri. 5/8 Projects: discuss with me. .
Mon. 5/11 Project Presentations.
Tim, Bridget, Eric
.
Wed. 5/13 Project Presentations. Sara/Andrea,.
Fri. 5/15 Project Presentations. Allison, Elizabeth, Juan/Katie, Melanie, Erin/Jim/Michelle.