Seminar in algebraic geometry

Prof. David Helm
RLM 9.118
dhelm@math.utexas.edu

Course time: MW 4-5
Location: RLM 12.166

Talk topics and schedule

Lecture 1 Wednesday, 1-20-10 Maps to projective space Yuecheng
References: Hartshorne II.7.1 and examples, and II.7.4-II.7.8 (ample invertible sheaves and linear systems.) If time permits, also II.7.2-II.7.3.
Alternative reference: Ravi Vakil's Lecture Notes, Lecture 32
Lecture 2 Wednesday, 1-27-10 Blowing up Mohammad
References: The second half of Hartshorne II.7 ("Proj, P(E), and Blowing Up")
Hartshorne's presentation of the blow-up is really unmotivated; Ravi's Notes are better about this: Ravi's Notes, Lectures 49-50
Lecture 3 Friday, 1-29-10 Differentials Orit
References: The first two parts of Hartshorne II.8 ("Kahler Differentials" and "Sheaves of Differentials")
Hartshorne is as usual missing a lot of motivation; Ravi's presentation is really good: Ravi's Notes, Lecture 37 Ravi's Notes, Lecture 38
Lecture 4 Friday, 2-5-10 Differentials II Yuan
References: More of Hartshorne II.8, starting with II.8.13. The section on "Nonsingular Varieties". Also II.8.20 and the examples.
See also Ravi's Notes, Lectures 39-40
Lecture 5 Wednesday, 2-10-10 Derived Functors and Homological Algebra Keenan
Hartshorne III.1, plus your favorite homological algebra reference.
Lecture 6 Friday, 2-12-10 Sheaf Cohomology Keenan
Hartshorne III.2.
Lecture 7 Monday, 2-15-10 Cohomology of affine schemes Travis
Hartshorne III.3.
Lecture 8 Wednesday, 2-17-10 Cech Cohomology Yuecheng
Hartshorne III.4.
Lecture 9 Monday, 2-22-10 Cohomology of Projective Space Yuan
Hartshorne III.5.
Lecture 10 Wednesday, 2-24-10 Serre Duality Mohammad
Hartshorne III.7, IV.1 (From III.7, just give 7.1 and the statement of Serre Duality: Corollary 7.7, and mention that for nonsingular varieties the dualizing sheaf is the canonical bundle.)
Lecture 11 Monday, 3-1-10 Riemann-Roch Mohammad
Hartshorne IV.1
Lecture 12 Wednesday, 3-3-10 Flat Families Yuan
Hartshorne III.9.
Lecture 13 Monday, 3-8-10 Grobner bases and degenerations Keenan
Eisenbud, Commutative algebra with a view towards algebraic geometry, 15.8, plus background on Grobner bases from 15.1-15.3
Lecture 14 Wednesday, 3-10-10 Moduli Spaces David (Helm)

Lecture 15 Monday, 3-29-10 Moduli Spaces and Deformation Theory David (Helm)

Lecture 16 Wednesday, 3-31-10 Some fun with Hilbert schemes David (Helm)

Wednesday, 4-21-10 The Weil Conjectures Yuecheng