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https://github.com/samson-mano/automorphism_visualization

Complex analysis visualization of automorphism on the unit disk
https://github.com/samson-mano/automorphism_visualization

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Complex analysis visualization of automorphism on the unit disk

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README

          

# Automorphism Visualization in the Unit Disk

## 📌 Overview
This repository provides a visual exploration of **automorphisms of the unit disk** in complex analysis.
It demonstrates how Möbius transformations map the unit disk onto itself while preserving its geometric structure.

The goal of this project is to build **intuition through visualization** of conformal mappings—something that is often difficult to grasp purely analytically.

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## 🧠 Mathematical Background

An automorphism of the unit disk is given by the transformation:

φₐ(z) = (z + a) / (1 + āz)

These transformations:
- Map the unit disk to itself
- Are conformal (angle-preserving)
- Form a group under composition

They are fundamental in **complex analysis and conformal mapping theory** :contentReference[oaicite:0]{index=0}

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## 🎯 Features

- Visualization of unit disk automorphisms
- Grid deformation under conformal maps
- Interactive / parametric transformation behavior
- Intuitive understanding of Möbius transformations

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## 🖼️ Example Visualizations

Below are sample outputs from the project demonstrating how the unit disk is transformed.

### Example 1
![Example 1](Images/Image1.png)

### Example 2
![Example 2](Images/automorphism_view1.png)

### Example 3
![Example 3](Images/automorphism_view_grid_1.png)

### Example 4
![Example 4](Images/automorphism_view_grid_2.png)

### Example 5
![Example 5](Images/automorphism_view_grid_3.png)

### Example 6
![Example 6](Images/automorphism_view_polar_2.png)

### Example 7
![Example 7](Images/automorphism_view_polar_3.png)

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## ⚙️ How It Works

The visualization is based on applying the automorphism:

- Points inside the unit disk are transformed via complex mapping
- A structured grid (Polar) is deformed
- The unit circle remains invariant

This allows direct observation of:
- Boundary preservation
- Nonlinear distortion
- Conformal nature of the mapping

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## 🚀 Getting Started

### 1. Clone the repository
```bash
git clone https://github.com/Samson-Mano/Automorphism_visualization.git
cd Automorphism_visualization