MATH70061 - Commutative Algebra

Lecture notes

Here are the lecture notes. They are mostly taken from the above references. I will be updating these as we go along.

#Lecture
1Prelude; rings and ideals
2Operations on ideals; maximal and prime ideals
3Radicals, local rings and modules; first examples
4Polynomial and power series rings; the Hilbert basis theorem
5Affine varieties; monomial orderings
6Division with remainder; Gröbner bases
7Buchberger's criterion and algorithm
8The Hilbert function and the Hilbert polynomial
9Dimension of a variety; towards the Nullstellensatz
10Integral extensions
11Noether normalisation
12The weak Nullstellensatz
13The strong Nullstellensatz
14Irreducible decomposition; the Zariski topology
15Regular maps; the theorem of Ax
#Lecture
16The spectrum of a ring
17Krull dimension; Artinian rings
18Localisation
19Local rings: Nakayama's lemma and Krull's height theorem
20Krull's principal ideal theorem
21Proof of the height theorem; dimension of polynomial rings
22The Cohen–Seidenberg theorems
23Valuation rings
24Valuations and discrete valuation rings
25Artin–Rees, Krull's intersection theorem and the main theorem on DVRs
26Dedekind domains
27Completion of a discrete valuation ring
28p-adic numbers and Hensel's lemma
29I-adic completion
30What we left out

Coursework

Exam

The exam constitutes 90% of your final grade.
Everything in the lecture notes is examinable.
The exam questions will be solvable with the material covered in the lecture notes.
Alternatively, if you have mastered the books listed above, you should be set for the exam.