19213910 Proseminar

Proseminar/Seminar on Number Theory: Geometry of Numbers

Niels Lindner

Additional information / Pre-requisites

Nötige Vorkenntnisse: Lineare Algebra und eine gewisse Vertrautheit mit den Grundbegriffen der Algebra, etwa "Gruppe", "Ring", "Körper", "Ideal", "Normalteiler", etc.

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Comments

This proseminar/seminar deals with Minkowski's "geometry of numbers", which does not only open up a geometric perspective on algebraic number theory, but also enables interesting applications in discrete geometry and combinatorial optimization. More precisely, we will dive into the following topics:

* Minkowski's classical convex body theorems

* Gaussian integers, Fermat's two-squares theorem, Legendre's four-squares theorem

* Algebraic number fields, finiteness of the class number, Dirichlet's unit theorem

* Linear equations over the integers: Hermite and Smith normal forms

* Basics of lattice theory

* Lattice basis reduction and the LLL algorithm

* The shortest vector problem

* Dense sphere packings

* Khinchine's flatness theorem

* Integer linear programming in fixed dimension

The purpose of this list is to offer a coarse thematic overview. The precise seminar topics will be fixed later, together with the participants.

Further information will be provided on the Whiteboard homepage of the seminar at the beginning of the lecture period.

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13 Class schedule

Regular appointments

Fri, 2025-04-25 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-05-02 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-05-09 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-05-16 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-05-23 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-05-30 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-06-06 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-06-13 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-06-20 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-06-27 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-07-04 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-07-11 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Fri, 2025-07-18 12:00 - 14:00
Proseminar/Seminar zur Zahlentheorie: Geometrie der Zahlen

Lecturers:
Prof. Dr. Niels Lindner

Location:
A3/SR 119 (Arnimallee 3-5)

Subjects A - Z