Meetings: Every weekday from September 8 to September 18 from 2:00pm - 4:15pm in MSB 2112.
Instructor: Babson
Email: b a b s o n@math.ucdavis.edu
Website:
Office: 2109 MSB
Topics: There are at least three official lists of topics which are relevant. The more recent and hence more correct are the newly submitted syllabi for this course:
Course Description: Problem-solving in graduate algebra:
groups, rings, modules, matrices, tensor products, representations,
Galois theory, ring extensions, commutative algebra and homological
algebra.
Expanded Course Description
1. Summary of Course Contents: The course is intended as a workshop on
solving problems in Algebra. The topics covered in the class include
the following.
1) Groups. Solvable groups. Semidirect products. Abelian groups.
Sylow's theorems. Free groups. Groups presentations.
2) Rings. Chinese remainder theorem. Polynomial and group rings.
Localization. Ideals. Principal ideal domains. Unique factorization
domains. Hilbert's basis theorem.
3) Modules. Free modules. Projective modules. Noetherian and
Artinian properties. Modules over a principal ideal domain.
4) Matrices. Modules over a polynomial ring. Jordan form.
Bilinear forms.
5) Tensor Products. Universal properties. Tensor products of
modules and algebras. Symmetric and alternating algebras.
6) Representations. Semisimple rings. Characters and
orthogonality. Representations of finite groups (including Abelian
and symmetric ones).
7) Galois Theory. Algebraic, normal, separable, solvable and
radical field extensions. Finite fields. Algebraic closures.
Splitting fields. The fundamental theorem of Galois theory.
Solvability by radicals.
8) Ring extensions. Integral extensions. Noether's normalization
theorem.
9) Commutative Algebra. Nullstellensatz. Primary decompositions.
Dedekind domains.
10) Homological Algebra. Chain complexes. Homology. Exactness of
functors. Long exact sequences. Injective, projective and flat
resolutions.
Math 250 syllabus
Textbook: Lang, Algebra
250A: Groups, rings, and modules
I. Groups (from chapter I of Lang)
Rapid review of basic group theory, followed by topics including: solvable
groups, the Holder program, Sylow theorems, abelian groups, semidirect
products, profinite groups, and free groups, presentations, and related
constructions.
II. Rings (from chapters II and IV of Lang)
Rapid review of basic ring theory, followed by topics including: the Chinese
Remainder Theorem, polynomial and group rings, localization, principal
ideal rings, and the Hilbert basis theorem.
III. Modules (from chapter III of Lang)
Basic definitions and constructions, free and projective modules,
bilinear forms, and structure of modules over principal ideal rings.
250B: Field theory, tensor products, and representation theory
V. Tensor products (from chapter XVI of Lang)
Definition and basic properties, tensor products of algebras, and
symmetric algebras.
VI. Representation theory (from chapters XVII and XVIII of Lang)
Semisimplicity. Basic definitions of representations and characters,
and structural results, 1-dimensional representations and representations
of finite abelian groups, and class functions and orthogonality of
characters.
VII. Algebraic field extensions (from chapters V and VI of Lang)
Rapid review of finite and algebraic field extensions, followed by topics
including: algebraic closures, normal extensions, separable and inseparable
extensions, finite fields, the fundamental theorem of Galois theory,
roots of unity, solvable and radical extensions, and solvability by
radicals, and infinite Galois theory.
Problems:
The best way to prepare for an exam is to practice writing up solutions to appropriate problems. Here are various lists of problems to try: