Lecturers: Diana Mocanu, Sun Woo Park
Time: Tuesdays 12.00-14.00
Location: Zeichensaal, Wegelerstraße 10, University of Bonn
Oral exams: 23-27 February, 16-20 March 2026
To sign up for the first period complete the form no later by 4th February:
https://forms.gle/vMQ1znoDc5YnZPDK6
Last lecture online, see email for Zoom link!
Lecture notes for this course can be found HERE (Last update: 26.01.2026).
(Updates: Minor corrections & Newly added Section 5.1: Hilbert's 10th problem over number rings)
The exam will be oral. It will contain both theory (definitions, proofs, statements of main theorems) and exercises very similar to the recommended exercises (without the "harder" ones).
Presentation slided for 13.01.2026 can be found HERE.
Links: Magma online calculator, LMFDB (elliptic curves), Rank records
Presentation slides for 23.12.2025 can be found HERE.
(Updates: uploaded sketch of proof for Exercises 3.47, 4.8, 4.27, 4.31, and 4.36.)
A tentative syllabus for this course can be found HERE.
The main references are:
Prerequisites:
Strongly recommended: Group theory, Ring theory, basic Galois theory
Recommended, but not required: Basic notions from algebraic number theory, algebraic geometry, specifically algebraic curves
14th October: (Sun Woo + Diana) Introduction, Crash course on algebraic curves, Group law, & First examples I
Recommended exercises: 1.4, 1.8, 1.9, 1.24.
21st October: (Diana) Group law, First examples II
Recommended exercises: 1.33, 1.34, 1.35, 1.36, 1.38.
28th October: (Sun Woo) Crash course on function fields + Isogenies I (up to Example 1.51 & Remark 1.52)
Recommended exercises: 1.43, 1.47, 1.48
4th November: (Sun Woo) Isogenies II (from Theorem 1.53)
Recommended exercises: 1.54, 1.59, 1.61, 1.65
11th November: (Diana) Elliptic curves over finite fields + Crash course in p-adics (up to Remark 3.5)
Recommended exercises: 2.2, 2.3, 2.4, 2.6 (harder), 2.13
18th November: (Sun Woo) Crash course in p-adics + Elliptic curves over local fields I: Hasse Principle / Minimal Weierstrass equations (up to Proposition 3.29)
Recommended exercises: 3.8, 3.9, 3.10, 3.12, 3.17, 3.20, 3.22, 3.23, 3.24, 3.25 (harder)
25th November: (Diana) Elliptic curves over local fields II: Minimal Weierstrass equations, points of finite order (up to Remark 3.41)
Recommended exercises: 3.32, 3.35, 3.37, 3.42 (discussed at the end of the lecture).
2nd December: (Sun Woo) Elliptic curves over local fields III: Good & Bad reduction + Elliptic curves over global fields I: Torsion + Weak Mordell-Weil (up to statement of Definition 4.13 and Lemma 4.15) + Student Evaluations at the end of the course.
Recommended exercises: 3.17, 3.46, 3.47, 4.5, 4.12 (Important)
9th December: (Diana) Elliptic curves over global fields II: Weak Mordell-Weil + Heights + Mordell-Weil Theorem
Recommended exercises: 4.13, 4.18, 4.23
16th December: (Diana) Elliptic curves over global fields III: Explicit 2-Descent + Computing MW Groups
Recommended exercises: 4.8, 4.27, 4.28, 4.29
23rd December: (Sun Woo) Exercises & Review (Tentative)
Recommended exercises: 4.30, 4.31 (harder), 4.35, 4.36
13th January: (Diana) Elliptic curves over global fields IV: Explicit 2-Descent via Magma + Survey on ranks
Recommended exercises: 4.30, 4.31 (harder), 4.35, 4.36, 4.43, 4.44
20th January: (Sun Woo) Selected topics I: Arithmetic Statistics of ranks of elliptic curves
27th January: (Sun Woo) Selected topics II: Hilbert's 10th problem via additive combinatorics
3rd February: (Diana) Selected topics III: Fermat's last theorem