## Module Handbook

• Dynamischer Default-Fachbereich geändert auf MAT

# Module MAT-40-29-M-4

## Module Identification

Module Number Module Name CP (Effort)
MAT-40-29-M-4 Quadratic Number Fields 4.5 CP (135 h)

## Basedata

CP, Effort 4.5 CP = 135 h 1 Sem. irreg. SuSe [4] Bachelor (Specialization) [EN] English Fieker, Claus, Prof. Dr. (PROF | DEPT: MAT) Fieker, Claus, Prof. Dr. (PROF | DEPT: MAT) Malle, Gunter, Prof. Dr. (PROF | DEPT: MAT) [MAT-AGCA] Algebra, Geometry and Computer Algebra [MAT-88.105-SG] M.Sc. Mathematics [NORM] Active

## Notice

Without a proof of successful participation in the exercise classes, only 3 credit points will be awarded for the module.

## Courses

Type/SWS Course Number Title Choice in
Module-Part
Presence-Time /
Self-Study
SL SL is
required for exa.
PL CP Sem.
2V+1U MAT-40-29-K-4
P 42 h 93 h
U-Schein
- PL1 4.5 irreg. SuSe
• About [MAT-40-29-K-4]: Title: "Quadratic Number Fields"; Presence-Time: 42 h; Self-Study: 93 h
• About [MAT-40-29-K-4]: The study achievement "[U-Schein] proof of successful participation in the exercise classes (ungraded)" must be obtained.

## Examination achievement PL1

• Form of examination: oral examination (20-30 Min.)
• Examination Frequency: each semester
• Examination number: 84138 ("Quadratic Number Fields")

## Contents

• structure of imaginary quadratic number fields,
• ideals and ideal class groups,
• Ideals as geometric lattices,
• finiteness of the ideal class group.

## Competencies / intended learning achievements

Upon completion of this module, the students have studied the extension of a number system through quadratic number fields which is fundamental for number theory. They also have studied the rings contained in quadratic number fields as well as their main properties and some simple applications. They are able to name and to prove the essential statements of the lecture as well as to classify and to explain the connections.

By completing the given exercises, the students have developed a skilled, precise and independent handling of the terms, propositions and techniques taught in the lecture. In addition, they have learnt how to apply these techniques to new problems, analyze them and develop solution strategies independently or by team work.

## Literature

• I.N. Stewart, D.O. Tall: Algebraic Number Theory,
• M. Trifković: Algebraic Theory of Quadratic Numbers.

## Registration

Registration for the exercise classes via the online administration system URM (https://urm.mathematik.uni-kl.de).

## Requirements for attendance of the module (informal)

More advanced knowledge from the courses [MAT-12-22-K-3] and [MAT-12-21-K-3] is useful but not necessarily required.

None

## References to Module / Module Number [MAT-40-29-M-4]

Course of Study Section Choice/Obligation
[INF-88.79-SG] M.Sc. Computer Science [Core Modules (non specialised)] Formal Fundamentals [WP] Compulsory Elective
[MAT-88.105-SG] M.Sc. Mathematics [Core Modules (non specialised)] Pure Mathematics [WP] Compulsory Elective
[MAT-88.706-SG] M.Sc. Mathematics International [Core Modules (non specialised)] Pure Mathematics [WP] Compulsory Elective
Module-Pool Name
[MAT-GM-MPOOL-5] General Mathematics (Introductory Modules M.Sc.)