Conformal Mapping: Exterior Circle to Interior Hexagon

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SUMMARY

The discussion focuses on finding a conformal mapping from the exterior of a circle, specifically |z|>1, to the interior of a regular hexagon. The proposed method involves using the Schwarz-Christoffel formula to map the interior circle to the upper half-plane and then to the hexagon. A critical point highlighted is that one vertex of the polygon must map to infinity when applying the Schwarz-Christoffel formula, which is essential for ensuring the correctness of the mapping.

PREREQUISITES
  • Understanding of conformal mapping principles
  • Familiarity with the Schwarz-Christoffel formula
  • Knowledge of complex analysis, particularly mapping techniques
  • Basic concepts of regular polygons in geometry
NEXT STEPS
  • Study the application of the Schwarz-Christoffel formula in detail
  • Research techniques for mapping the exterior of circles to polygons
  • Explore examples of conformal mappings in complex analysis
  • Learn about the significance of mapping vertices to infinity in conformal mappings
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Students and professionals in mathematics, particularly those studying complex analysis and conformal mappings, as well as anyone tackling advanced geometry problems involving polygonal mappings.

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Homework Statement


I'm trying to find a function that map the exterior of a circle |z|>1 into the interior of a regular hexagon.

Homework Equations


The Attempt at a Solution



I have tried mapping the exterior to the interior circle. Then mapping interior circle to the upper plane which then I have to map the upper plane to the interior hexagon using the Schwarz-Christoffel formula. I'm not sure if this is the right method but some help will be useful..
 
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It sounds okay - though I seem to recall a mapping that takes the exterior of the circle to the upper half plane in one step.

Also when using the Schwarz-Christoffel formula, keep in mind that one of the vertices of the polygon has to map to the point infinity (I once paid dearly in loads of wasted time for forgetting that little snag)
 

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