[Complex Analysis] Finding a conformal map

Click For Summary
SUMMARY

The discussion focuses on finding a conformal map from the region \(\Omega = \{ z \in \mathbb{C} | -1 < \textrm{Re}(z) < 1 \}\) to the unit disk \(D(0,1)\). Participants highlight the use of analytical functions, specifically linear fractional or Möbius transformations, which are conformal everywhere where the derivative is non-vanishing. A suggestion is made to consider the transformation of vertical boundary lines into other useful regions, such as half-planes or disks with slits, as intermediate steps to achieve the desired mapping.

PREREQUISITES
  • Understanding of complex analysis concepts, specifically conformal mappings.
  • Familiarity with linear fractional transformations (Möbius transformations).
  • Knowledge of analytical functions and their properties.
  • Experience with mapping regions in the complex plane.
NEXT STEPS
  • Study the properties of linear fractional transformations in detail.
  • Learn about the Riemann mapping theorem and its applications.
  • Explore examples of conformal mappings from half-planes to disks.
  • Investigate the use of exponential functions in mapping strips to half-planes.
USEFUL FOR

Students and professionals in mathematics, particularly those studying complex analysis, as well as anyone interested in the applications of conformal mappings in various fields such as engineering and physics.

nonequilibrium
Messages
1,412
Reaction score
2

Homework Statement


I have to find a conformal map from \Omega = \{ z \in \mathbb C | -1 &lt; \textrm{Re}(z) &lt; 1 \}
to the unit disk D(0,1)

Homework Equations


an analytical function f is conformal in each point where the derivative is non-vanishing
specifically, we can think of linear fractionals/mobius transformations, which are conformal everywhere and determined by the image of three numbers

The Attempt at a Solution


I've busted my brain on this one, but I can't think of anything that will transform these two vertical boundary lines into something useful. Note that I do not have to transform it to the unit disk; also a half/quarter-plane, a disk with a slit cut out, half a disk, will do, as I already know (from previous exercises) conformal transformations from those sets to the unit disk
 
Physics news on Phys.org
If you take the set {z : 0<Im(z)<pi} then exp(z) maps that strip into the upper half plane, right? That's a lot like your problem.
 
Oh jeesh I can't believe I didn't see that x_x

Let's hope I get all the stupidity out before the exam

Thank you!
 

Similar threads

Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
8
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 25 ·
Replies
25
Views
2K