2025 Fall MATH 255 001 LEC 001

2025 Fall

MATH 255 001 - LEC 001

Algebraic Curves

David Eisenbud

Aug 27, 2025 - Dec 12, 2025
Tu, Th
09:30 am - 10:59 am
Class #:25392
Units: 4

Instruction Mode: In-Person Instruction

Offered through Mathematics

Current Enrollment

Total Open Seats: 14
Enrolled: 16
Waitlisted: 0
Capacity: 30
Waitlist Max: 5
No Reserved Seats

Hours & Workload

3 hours of lecture per week, and 9 hours of outside work hours per week.

Course Catalog Description

Elliptic curves. Algebraic curves, Riemann surfaces, and function fields. Singularities. Riemann-Roch theorem, Hurwitz's theorem, projective embeddings and the canonical curve. Zeta functions of curves over finite fields. Additional topics such as Jacobians or the Riemann hypothesis.

Class Description

The theory of algebraic curves (aka Riemann Surfaces) is
the model for the development of algebraic geometry in general, and
plays a central role from number theory to physics. The core of the
theory is based in an range of examples and constructions for smooth
curves in projective space over the complex numbers. These are the
subjects of this course.

The course will begin with a rapid tour of the necessary definitions
and theorems in part 2 of the prerequisites to establish a common
language and background.

Then I'll follow the outline of the text, alternating basic
theoretical topics such as the Jacobian variety, the Hilbert scheme,
and the character of hyperplane sections with the treatment of
embeddings of curves of low genus in projective spaces.

Throughout, my goal will be to provide a feeling for the landscape of
algebraic curves and intuition about the examples that motivate the
field, rather than detailed proofs of difficult theorems.

Class Notes

Prerequisites: 1.Background in commutative algebra including primary
decomposition, dimension theory and integral closure.

2. A first course in algebraic geometry or Riemann surfaces. Some
familiarity with the notions of divisors and invertible sheaves,
differentials, and cohomology.

Text: The Pra... show more
Prerequisites: 1.Background in commutative algebra including primary
decomposition, dimension theory and integral closure.

2. A first course in algebraic geometry or Riemann surfaces. Some
familiarity with the notions of divisors and invertible sheaves,
differentials, and cohomology.

Text: The Practice of Algebraic Curves, by David Eisenbud and Joe
Harris (PDF available free under the "e-book" category on the American
Mathematical Society Bookstore website).

Auxilliary Text: Curves and their Jacobians by David Mumford (Appendix
to Springer Lecture Notes in Mathematics 1358) show less

Rules & Requirements

Repeat Rules

Course is not repeatable for credit.

Reserved Seats

Reserved Seating For This Term

Current Enrollment

No Reserved Seats

Textbooks & Materials

See class syllabus or https://calstudentstore.berkeley.edu/textbooks for the most current information.

Textbook Lookup

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eTextbooks

Associated Sections

None