Complex Analysis & Applications

3203NSC

Week 1


Complex Analysis and Applications


Welcome!

Convenor: Juan Carlos Ponce Campuzano


Housekeeping

  • Time commitment - 150 hr
    • About 7-8 hr/wk on regular course material
      • 2 hr to read/watch core material, "Check Your Understanding"
      • 3-4 hr on workshop problems and reviewing core material
      • 2 hr session to reinforce ideas (quizzes and other exercises)
    • About 50 hours on
      • reviewing progress, focus on difficult areas
      • assessment tasks, exam prep
  • Assessment
    • Student-negotiated assessment [40%]:
      • reinforcement/feedback on core knowledge/skills
      • exam skills development: maths communication
    • Assignment [20%]: assesses ability to present solutions
    • Oral Exam [40%]: assesses understanding

In-class assessment

  • What?
    • 4 activities through trimester (10% of course mark each)
    • In-class quizzes
    • Running tutorials
    • Presentations of solutions to (tutorial) problems
    • ... open to other suggestions
  • When?
    • Fit around other assessment ...
    • No class in Wk 5 (GC) / Wk 9 (NA)
    • 20% assignment due end Wk 10
    • 40% exam in Wks 13-14
  • We will finalise assessments and dates next week


Working together

The point of this (and any) course is

to know more than when you started ...

  • What you should do?
    • help each other understand (maths, applications, context)
    • share ideas for what to do
  • What you should not do?
    • tell each other the answer (defeats the educative purpose)
    • do the work for one another
    • copy one another's work

What is Complex Analysis?

1. Complex Numbers

What is Complex Analysis?

2. Complex Functions

$f(z) = u(x,y) + i v(x,y)$



What is Complex Analysis?

3. Differentiation



What is Complex Analysis?

4. Integration

$ \ds \int_C f(z)\,dz = \int_a^bf\left(z(t)\right)z'(t)\,dt$

What is Complex Analysis?

5. Complex Series

$ \ds \sum_{n=1}^{\infty}z_n=z_1+z_2+z_3+\cdots$

What is Complex Analysis?

6. Residues (integration revisited)

$ \ds \int_C f(z)\,dz =2\pi i \sum_{z_k\text{ inside }C}\text{Res}_{z=z_k}f(z)$

What is Complex Analysis?

7. Applications: Real integrals

$ \ds \int_{0}^{\infty}\frac{\sin x}{x}dx$

What is Complex Analysis?

8. Applications: Inverse Laplace problems

$ \ds \mathcal{L}\left\{f\right\}=F(x) =\int_0^{\infty} e^{-st}f(t)\,dt$






What is Complex Analysis?

9. Applications: Laplace's equation

$ \ds \nabla ^2 \phi(x,y)=0$


What is Complex Analysis?

10. Applications: Series, Number Theory, Geometry, etc.


For the rest of today

  • Check your understanding
    • How to use these sheets
    • Answers for this week
  • Tutorial problems
    • Answers for this week



Credits

Design, Images & Applets
Juan Carlos Ponce Campuzano
unless otherwise stated