**Course Task：**The first objective is to learn about algebraic structures, to get a profound
knowledge about groups, rings and modules and basics in Galois theory. It will be connected with number theoretical and geometric applications. Secondly we strengthen the ability to workout and write
abstract proofs in a more academic way.

**Course Contents：**The algebraic behavior of real vector spaces carries over to a much wider class.
Replacing the field of real numbers by a (more general) ring provides a theory with a much more diverse picture. Modules, the analogue for vector spaces, do not need to carry a basis anymore. Rings
carry a beautiful set of ideals, which one could think about as a generalization of divisors of integers. Analyzing the behavior of ideals is very successful for proving difficult number theoretical
problems. The theory of abstract algebra occurs in almost all mathematical directions. In this course we will learn about:

groups, rings, ideals, modules , number theoretical applications, Galois theory, localization, local-global principle

Here is the modified syllabus.

**Literature:**

- Lang, Serge
*Algebra*, Springer, 2002, ISBN 978-7506271844 - Artin, Michael,
*Algebra*, 2nd edition. Pearson, 2011, ISBN 978-0132413770 - Dummit, David S. and Foote, Richard M,
*Abstract Algebra*, 3rd edition, John Wiley & Sons, 2003, ISBN 978-1119222910 - Frederick M. GoodmanPrentice Hall,
*Algebra Abstract and concrete*; 1st edition (March 1, 1998), ISBN 978-0132839884

**Problem sheets:** Sheet 1, Sheet
2, Sheet 3, Sheet 4, Sheet 5, Sheet 6 Sheet 7

Sheet 8 Sheet 9 Sheet 10 Sheet 11

Hint for the solution of Problem 11.1

Sheet 12 Sheet 13 Sheet 14 Sheet 15*

**Final: ** The final takes place in the teaching building **room 404** on **Thursday
the 24th** of June 2021 from **8:30 to 11:30 am**.

Lecture notes: pages 1-160 161-178 179-223 224-264