Math 665 Spring 2025 (Algebraic Geometry II): Syllabus Summary
Instructor: Takumi Murayama

Lecture Schedule and Homework Due Dates for Math 665

                          

Week


Date


Section(s)

Homework Due Dates
(Fri at 11:59PM)
1 1/13 Categories (3.1),
Sheaves (2.1)
1/15 Sheaves, Sheafification (2.1) Homework 1
2 1/20 Sheaves of modules (2.5), Abelian categories (3.1),
Mod(OX) is Abelian (2.5)
1/22 Grothendieck Abelian categories, Injective objects (3.1) Homework 2
3 1/27 Grothendieck Abelian categories have enough injectives, Mod(OX) is Grothendieck Abelian (3.2)
1/29 Derived functors and sheaf cohomology, Grothendieck's vanishing theorem (3.2) Homework 3
4 2/3 Coherent and quasi-coherent sheaves (2.5), Affine schemes (2.2), Serre's equivalence for affine schemes (2.5)
2/5 Cartan's Theorem B for affine schemes (3.3),
Schemes (2.2)
Homework 4
5 2/10 Noetherian schemes, immersions, reduced schemes (2.2–2.3)
2/12 The qcqs lemma (2.5),
Serre's criterion for affineness (3.3)
Homework 5
6 2/17 Proj (2.2),
Sheaves associated to graded modules (2.5)
2/19 Graded modules associated to sheaves, Serre's equivalence for QCoh(Proj(S)) (2.5) Homework 6
7 2/24 Serre's equivalence for Coh(Proj(S)) (2.5),
Serre's finiteness and vanishing theorems (2.5, 3.5), Fiber products (2.3)
2/26 Fiber products and base change (2.3)
8 3/3 Base change (2.3),
The diagonal morphism and separated morphisms (2.4)
Homework 7
3/5 Separated morphisms (2.4),
Čech cohomology (3.4)
9 3/10 The Cohomology of Projective Space (3.5)
3/12 No Class - Class Release for Midterm Exam Midterm Oral Exam
3/12 and 3/13

Spring break

10 3/24 Valuative criteria (2.4)
3/26 Valuative criteria (2.4),
Relative Proj (2.7)
Homework 8
11 3/31 Rational maps to relative Proj (2.7)
Ample and very ample invertible sheaves (2.5, 2.7)
4/2 Projective morphisms (2.7) Homework 9
12 4/7 Divisors (2.6)
4/9 Divisors (2.6) Homework 10
13 4/14 Divisors (2.6)
4/16 Divisors (2.6)
Ampleness criteria (2.7, 3.5)
Homework 11
14 4/21 Ampleness criteria (2.7, 3.5)
Blowups (2.7)
Flat morphisms (3.9)
4/23 Differentials (2.8) Homework 12
15 4/28 Differentials (2.8),
Formally smooth morphisms (3.10)
4/30 Jacobian criterion,
Bertini's theorem (2.8),
Serre duality (3.7),
Riemann–Roch for curves (4.1)
16
Have a wonderful summer!