Algebra II Spring 2024

Lecturer
Özlem Imamoglu
Lectures
Mon 13-14, HG F 3
Wed 14-16, HG F 3
Coordinator
Ana Marija Vego
Exercise classes
Tue 16-18

Content

Selected topics concerning rings, groups, fields, including Galois theory. The official Course Catalogue page can be found here.

date content notes
Mo 19.02. Review - Rings and fields, Isomorphism theorems for rings Lecture 0
We 21.02. Quotient field of an integral domain, Euclidean domains, Principal ideal domains Lecture 1
Mo 26.02. Prime and irreducible elements, Principal ideal domains, Unique factorisation domains Lecture 2
We 28.02. Prime and irreducible elements, Principal ideal domains, Unique factorisation domains Lecture 3
Mo 04.03. Principal ideal domains, Unique factorisation domains, Gauss lemma Lecture 4
We 06.03. Irreducibility criteria, Fields and field extentions Lecture 5
Mo 11.03. Field extentions, Kronecker's theorem Lecture 6
We 13.03. Field extentions, Algebraic extentions Lecture 7
Mo 18.03. Algebraic extentions Lecture 8
We 20.03. Transcendental numbers, Splitting fields Lecture 9
Mo 25.03. Algebraic closures Lecture 10
We 27.03. Normal extentions, Separable extentions Lecture 11
Mo 08.04. Separable extentions, Simple extentions Lecture 12
We 10.04. Finite fields, Basic definitions of Galois theory Lecture 13
We 17.04. Galois theory Lecture 14
Mo 22.04. Galois theory Lecture 15
We 24.04. Galois theory Lecture 16
Mo 29.04. Galois correspondence Lecture 17

Prerequisites

The lecture continues the Algebra I lecture from HS2023.

Exercises

The new exercises will be posted here on Fridays. We expect you to look at the problems over the weekend and to prepare questions for the exercise class on Tuesday.

Please hand in your solutions by the following Friday at 12:00 in your assistant's box in HG J68 or per email. Your solutions will usually be corrected and returned in the following exercise class or, if not collected, returned to the box in HG J68.

Office hours will take place in the weeks after a new exercise sheet is posted, on Wednesdays at 16:15-18:00 (the first one being on the 28th of February) in HG F 5. There will be no office hours on 06.03., 17.04., 01.05. and 29.05.

The learning elements offered during the semester measure active participation in the exercises. From the second week of the semester onwards, 5 single-choice exercises are completed individually at the beginning of each lesson. Each correctly answered task is worth 1 point. The number of points n achieved in the semester is converted into a grade bonus of a maximum of 0.25 grade points using the formula max(0,min(1,(n-20)/25)) times 0.25. This bonus is added to the provisional grade from the examination without rounding; the result is rounded to the final grade.

exercise sheet due by solutions single-choice
Exercise sheet 0 Fr 01.03. Solutions 0
Exercise sheet 1 Fr 08.03. Solutions 1 Single choice 1
Exercise sheet 2 Fr 15.03. Solutions 2 Single choice 2
Exercise sheet 3 Fr 22.03. Solutions 3 Single choice 3
Exercise sheet 4 Fr 29.03. Solutions 4 Single choice 4
Exercise sheet 5 Fr 12.04. Solutions 5 Single choice 5
Exercise sheet 6 Fr 19.04. Solutions 6 Single choice 6
Exercise sheet 7 Fr 26.04. Single choice 7
Exercise sheet 8 Fr 03.05.

Exercise classes

timeroomassistantlanguage
Tu 16-18ETZ E 7Raphael Angstenglish
Tu 16-18HG E 33.5Samuel Huberenglish
Tu 16-18HG G 26.3Janine Roshardtenglish
Tu 16-18CHN D 44Joel Sommerenglish

Literature