Jan 20 | Chapter 8: Summary of dimension theory |
Jan 22 | Section 10.0: Principal ideal theorem Section 10.1: Systems of parameters |
Jan 25 | Section 17.1: Koszul complexes of lengths 1 and 2 |
Jan 27 | Section 17.2: Koszul complexes in general |
Jan 29 | Section 17.3: Building the Koszul complex from parts |
Feb 1 | Finish 17.3 |
Feb 3 | Guest lecture: Arinkin |
Feb 5 | Guest lecture: Arinkin |
Feb 8 | Section 18.1: Depth |
Feb 10 | Section 18.2: Cohen-Macaulay rings |
Feb 12 | Finish 18.2 |
Feb 15 | Section 16.6: Jacobian criteria for regularity Section 18.3: Serre's conditions (Sn) |
Feb 17 | Section 18.4: Flatness and depth Section 18.5: Examples |
Feb 19 | Section 19.1: Projective dimension and minimal resolutions Section 19.2: Hilbert syzygy theorem |
Feb 22 | Section 19.3: Auslander-Buchsbaum formula |
Feb 24 | Section 19.4: Stably free modules and factoriality of regular local rings |
Feb 26 | Section 20.1: Uniqueness of free resolutions |
Feb 29 | Section 20.2: Fitting ideals |
Mar 2 | Section 20.3: What makes a complex exact? |
Mar 4 | Section 20.4: Hilbert-Burch theorem |
Mar 7 | Section 20.5: Castelnuovo-Mumford regularity |
Mar 9 | Section 15.1, 15.2: Monomials and monomial orderings |
Mar 11 | Section 15.8: Gröbner bases and flat families |
Mar 14 | Section 15.9: Generic initial ideals |
Mar 16 | Section 15.3, 15.4: Division algorithm, Buchberger's criterion |
Mar 18 | Section 15.5: Schreyer's theorem |
Spring break | |
Mar 28 | Local cohomology: definitions, Čech complex |
Mar 30 | Local duality (polynomial rings) |
Apr 1 | Mayer-Vietoris sequence, Local cohomology and depth, sheaf cohomology |
Apr 4 | no class |
Apr 6 | no class |
Apr 8 | no class |
Apr 11 | Local cohomology and Hilbert polynomials, regularity |
Apr 13 | 24, Appendix, Section 11.1: Injective modules, Bass numbers |
Apr 15 | 24, Section 11.2: Gorenstein rings |
Apr 18 | 24, Section 11.4: Local duality (Gorenstein rings) |
Apr 20 | 24, Section 11.5: Canonical modules |
Apr 22 | Canonical modules continued |
Apr 25 | Local and sheaf cohomology |
Apr 27 | 24, Chapter 9: Cohomological dimension |
Apr 29 | 24, Section 15.2: Connectedness theorems of Faltings, Fulton-Hansen |
May 2 | Finish 15.2 |
May 4 | Eagon-Northcott complex |
May 6 | Kempf collapsing, see notes |