Math 429:
Midterm Exam (30%)Possible topics:
1. Subgroups of free groups are free (Schreier's theorem)
2. Group cohomology (past H^1, H^2); or an indepth study of central
extensions
3. Infinite Galois theory, pro-finite completions, etc.
4. Artin-Brauer theory on induced representations
5. Finite-dimensional representations of compact groups
6. Coxeter groups, BN pairs, and the Bruhat Decomposition
7. Milnor's group K_2 and central extensions of matrix groups
8. SL(2, R), Fundamental domains, Siegel sets
9. Infinite dimensional representations of finite groups (monstrous
moonshine)
10. Burnside's p^aq^b theorem
11. Representations of the Symmetric group
| Lecture date & title | Comments |
| 1. Th Sep. 4: Introduction: Groups, subgroups, homomorphisms | Subgroups: 2.4, 2.5 Symmetric groups: 1.3 Homomorphisms: 1.6 |
| 2. Tu Sep. 9: Direct products, semi-direct products | Direct Products: 5.1, 5.4 Semi-direct Products: 5.5 |
| 3. Th Sep. 11: Quotients, group actions | Cosets and Quotients: 3.1, 3.2 Isomorphism theorems: 3.3 Group actions & Class Equation: 4.1, 4.2, 4.3 Groups of order p^2: 4.3 (Theorem 8, Corollary 9) |
| 4. Tu Sep. 16: Finite abelian p-groups, Free groups | Cauchy's thorem: Proposition 21, p .102 p-groups: 6.1 |
| 5. Th Sep. 18: Free groups II | Free groups: 6.3 Initial, terminal objects in categories: Appendix II HWK 1 due |
| 6. Tu Sep. 23: Sylow Theorems 1 | Sylow theorems: 4.5 |
| 7. Th Sep. 25: Sylow Theorems 2 | Sylow theorems: 4.5, Nilpotent groups |
| 8. Tu Sep. 30: | NO CLASS |
| 9. Th Oct. 2: classification of groups of low order | Guest Lecture by Dr. Anna Puskas |
| 10. Tu Oct. 7: Schur-Zassenhaus Theorem, pt. 1 | See notes here |
| 11. Th Oct. 9: Schur-Zassenhaus Theorem, pt. 2 | See notes here |
| 12. Tu Oct. 14: Normal Series, Composition series | Composition
series: 3.4 HWK 2 due Math 581 write up-projects must be approved (note: deadline extended from Oct. 7 as on Syllabus) |
| 13. Th Oct. 16: Jordan Holder theorem, Solvable groups | Composition series, Solvable groups: 3.4, 6.1 |
| 14. Tu Oct. 21: Intro to Group representations | 18.1 |
| 15. Th Oct. 23: Midterm Exam (30 %) | MIDTERM EXAM |
| 16. Tu Oct. 28: Schur's Lemma, Characters and orthogonality | 18.1, 18.3 |
| 17. Th Oct. 30: Characters an orthogonality, tensor products | 18.3 |
| 18. Tu Nov. 4: Orthogonality ctd, Induction (first part) | 18.3, 19.3 Project Outline Due (MATH 581) |
| 19. Th Nov. 6:Induced (second part), Frobenius Reciprocity | 19.3 |
| 20. Th Nov. 13: Frobenius reciprocity, examples | 19.3 |
| 21. Tu Nov. 18:Review of field theory, splitting fields, normal extensions | 13.1, 13.2, 13.4 Hwk 3 due |
| 22. Th Nov. 23:Normal extensions, primitive element theorem, galois extensions | 13.4, 14.1 |
| 23. Tu Nov 25:Proof of main theorem of galois theory | 14.2 |
| 24. Th Nov 27:examples | 14.2, 14.5, 14.6 |
| 25. Tu Dec 2: | Hwk 4 due, Math 581 projects due |
| Assignment # | Due Date | Comments |
| Homework 1, pdf | Thursday Sep. 18 |
|
| Homework 2, pdf | Thursday Oct. 9 | updated version with question 6.3, #14 written out |
| Homework 3, pdf | Tuesday Nov. 18 | |
| Homework 4, pdf | Tuesday Dec. 2 |