# COURSE OUTLINE: MH3101

Course Title

Course Code

### MH3101

Offered Study Year 3, Semester 1
Course Coordinator Juan-Pablo Ortega (Prof) juan-pablo.ortega@ntu.edu.sg
Pre-requisites MH1101 and MH2100
Mutually exclusive MH2801
AU 4
Contact hours Lectures: 39, Tutorials: 12
Approved for delivery from AY 2022/23 semester 1
Last revised 8 Aug 2022, 09:27

### Course Aims

This is the only courses on complex analysis and is compulsory for students of mathematical sciences tracked in pure and applied mathematics. The course aims to present an introduction to the theory of functions of a complex variable that is useful in many branches of pure and applied mathematics and computer engineering as well. This course carefully treats the principal topics, such as limits, continuity, differentiability of complex-valued functions of a complex variable, complex integral, Taylor series, singularity, Laurent series, calculus of residues, analytic functions as geometric mappings, and to illustrate the power of the subject through a variety of applications. After learning this course, you will be able to make connections between the complex-valued functions and real-valued functions of two real variables studied in Calculus III, as well as advantages of complex-valued functions in solving several problems in real analysis.

### Intended Learning Outcomes

Upon successfully completing this course, you should be able to:

1. Explain the setting of the concepts of complex-valued functions of a complex variable
2. Translate between problems in complex analysis and problems in real analysis using different approaches, as well as what have already been studied in MH1100, MH1101, MH2100
3. Prove the mathematical statements in Complex Analysis.
4. Apply methods of Complex Analysis to solve problems in real analysis, computer science and engineering involving complex numbers

### Course Content

Analytic functions of one complex variable; Complex derivative; Elementary functions; Cauchy-Riemann equations

Contour integrals; Cauchy's theorem and Cauchy's integral formula; Liouville's theorem, Fundamental Theorem of Algebra

Taylor series, Laurent series, Singularities of analytic functions

Residue theorem, Calculus of residues, Applications

Analytic functions as geometric mappings, Maximum modulus principle, Schwarz lemma, Conformal mappings

### Assessment

Component Course ILOs tested SPMS-MAS Graduate Attributes tested Weighting Team / Individual Assessment Rubrics
Continuous Assessment
Tutorials
Assignment 1, 2, 3 1. a, b, c
2. a, b, c
3. a
25 individual See Appendix for rubric
Mid-semester Quiz
Short Answer Questions 1, 2, 3 1. a, b, c
2. a, b, c
3. a
25 individual See Appendix for rubric
Examination (2 hours)
Short Answer Questions 1, 2, 3, 4 1. a, b, c
2. a, b, c
3. a
50 individual See Appendix for rubric
Total 100%

These are the relevant SPMS-MAS Graduate Attributes.

### 1. Competence

a. Independently process and interpret mathematical theories and methodologies, and apply them to solve problems

b. Formulate mathematical statements precisely using rigorous mathematical language

c. Discover patterns by abstraction from examples

### 2. Creativity

a. Critically assess the applicability of mathematical tools in the workplace

b. Build on the connection between subfields of mathematics to tackle new problems

c. Develop new applications of existing techniques

### 3. Communication

a. Present mathematics ideas logically and coherently at the appropriate level for the intended audience

### Formative Feedback

Feedback will be given to students through the weekly problem tutorial sets that are covered in tutorial. Common mistakes in the assignment and the midterm test will be discussed in the provided solution sets.

### Learning and Teaching Approach

 Lectures (39 hours) Examples and Explanation - Motivates the concepts in the learning objectives through examples. The general theory and principles are then explained. Problem solving - Develops competence in solving a variety of problems and gaining familiarity with mathematical proofs. Tutorials (12 hours) Examples and Explanation - Motivates the concepts in the learning objectives through examples. The general theory and principles are then explained. Problem solving - Develops competence in solving a variety of problems and gaining familiarity with mathematical proofs. Peer Instruction - You will work together to gain experience in explaining concepts to others and presenting solutions.

* Textbook
J.W. Brown & R.V. Churchill, Complex Variables and Applications, McGraw-Hill, Ninth Edition, 2014
ISBN-13: 978-0073383170, ISBN-10: 0073383171

* Reference-book
E.B. Saff, A.D. Snider, Fundamentals of Complex Analysis: Engineering, Science, and Mathematics, Pearson, Third Edition, 2014
ISBN: 0-13-907874-6

### Course Policies and Student Responsibilities

1.This course is not easy, so get with it from the start or you’ll have great difficulty later
2.The more you work in August, the less you have to worry in November
4.Do the assigned questions and go to the tutorial sessions
5.Review your notes before coming to class and make sure you understand the last lecture

Assessments:

1.A late submission for an assignment is not accepted
2.No make-up midterm test will be arranged
3.A student who is absent from a Midterm test without valid Leave of Absence will be given zero mark.
4.In case of a valid reason for absence, the total course marks would subsequently be rescaled to a base of 100%.

Good academic work depends on honesty and ethical behaviour. The quality of your work as a student relies on adhering to the principles of academic integrity and to the NTU Honour Code, a set of values shared by the whole university community. Truth, Trust and Justice are at the core of NTU’s shared values.

Good academic work depends on honesty and ethical behaviour. The quality of your work as a student relies on adhering to the principles of academic integrity and to the NTU Honour Code, a set of values shared by the whole university community. Truth, Trust and Justice are at the core of NTU’s shared values.

### Course Instructors

Instructor Office Location Phone Email
Juan-Pablo Ortega (Prof) juan-pablo.ortega@ntu.edu.sg

### Planned Weekly Schedule

Week Topic Course ILO Readings/ Activities
1

Complex numbers; topology of the complex plane

1, 2, 3, 4

Annotated lecture slides

2

The complex derivative; Cauchy-Riemann equations

1, 2, 3, 4

Annotated lecture slides

3

Elementary functions; multi-valued functions

1, 2, 3, 4

Annotated lecture slides

4

Complex integral

1, 2, 3, 4

Annotated lecture slides

5

Complex integral

1, 2, 3, 4

Annotated lecture slides

6

Complex integral

1, 2, 3, 4

Annotated lecture slides

7

Power series

1, 2, 3, 4

Annotated lecture slides

8

Singularities and Laurent series. Midterm exam

1, 2, 3, 4

Annotated lecture slides

9

Singularities and Laurent series

1, 2, 3, 4

Annotated lecture slides

10

Calculus of residues

1, 2, 3, 4

Annotated lecture slides

11

Analytic functions as geometric mappings

1, 2, 3, 4

Annotated lecture slides

12

Analytic functions as geometric mappings

1, 2, 3, 4

Annotated lecture slides

13

Revision

1, 2, 3, 4

Annotated lecture slides

### Appendix 1: Assessment Rubrics

#### Rubric for Tutorials: Assignment (25%)

Point-based marking (not rubrics based)

#### Rubric for Mid-semester Quiz: Short Answer Questions (25%)

Point-based marking (not rubrics based)

#### Rubric for Examination: Short Answer Questions (50%)

Point-based marking (not rubrics based)