2025 Lecture timetable
Mon 16:00 in MA B1.01 from Mon 6th Jan 2025
Thu 14:00 in MA B1.01
Fri 10:00 in MA B3.01
Support class: First session _Week 1_ Thu 9th Jan 13:00-14:00 in A1.01
with TA Marc Truter <Marc.Truter@warwick.ac.uk>
Partial lecture notes 2025
Crib-sheet "Frequently Forgotten Facts"
Dedekind domains and Prerequisites
Regular local rings, Artinian conditions
Example sheets
Preliminary worksheet on prerequisites
First worksheet with deadline Mon 27th Jan 2025 at 12:00 noon
Partial lecture notes 2024
2024 overall syllabus
2024 Lecture 1
Dedekind and Weber 1882
Chap 5 of course notes, Weeks 6-8
Chap 6 of course notes, Weeks 9-10
David Rees' 1956 paper on the Hauptidealsatz
Appendix: Overview of homological algebra
Appendix on injective modules
Alex Groutides' write-up of 2022-2023 lectures (with some new material)
Chapter 5: Koszul complex, regular sequence
Chapter 6: Depth, Cohen-Macaulay and Gorenstein
Appendix on Homological Algebra
2024 Worksheets
Worksheet_0 on prerequisites
Worksheet_1 Assignment deadline Mon 29th Jan at 12:00
Worksheet_2 Assignment deadline Mon 12th Feb at 12:00
Worksheet_3 Assignment deadline Mon 11th Mar at 12:00
Worksheet_4 Assignment deadline Mon 25th Mar at 12:00
Write-up of Autumn 2022 lectures by Alexandros Groutides
Chapter 5 Regular sequences, the Koszul complex and regular local rings
Chapter 6 Cohen-Macaulay and Gorenstein rings
Chapter 7 Appendix on homological algebra
Lecture notes from Autumn 2022
Week1
Week2
Week3
Weeks4-5
Week6
Lecture 17 Part I
Lecture 17 Part II
Lecture 18 Part I
Lecture 18 Part II
Last year's notes
The information below refers to the course given in 2021-22.
Plans
My initial plans for the course
Lect 1
What is commutative algebra? [Sorry, no lecture capture.]
Lect 2
Dedekind domain, Existence of primes [Sorry, I forgot to
wear the microphone for first 45 minutes.]
More on DVRs
Further discussion and exercises on Discrete valuation rings.
Lect 3
First ideas on Spec A and the Zariski topology
Lect 4-5
Varieties versus Spec A. Chain conditions
Lect 6
Finite length modules. An Artinian ring is Noetherian
Lectures 7-10. Completion and Hensel's Lemma
Lect 12-14
Dimension theory. Graded rings and modules and their Hilbert series
Lect 15-17
Hilbert-Samuel functions and the main theorem of dimension theory
Lect 18-22
Syzygies and regular sequences
Lect 25-29
Ext and depth - preliminary draft
Homework sheets
There will be 4 Assessed worksheets, with submission deadlines 12:00 noon on
Week 3 Fri 22nd Oct
Week 5 Fri 12th Nov
Week 7 Fri 26th Nov
Week 10 Fri 9th Dec
Example sheet 1
Questions 1,8 and 11 are assessed questions.
Solution
to Q10
Example sheet 2
Assessed questions from Example sheet 2
Example sheet 3
Example sheet 4
Additional resources
Schlichting and Bouyer's 2013 lecture notes