Level Sets for the Tight Surface:

The initial circle:

Pulling one side across the other:

Pulling a side across one of the loops:

The triple point:

Completely across the loop, moving toward a saddle:

Just before the saddle:

The critical level:

Just after the saddle:

Pulling back toward the edge:

The final circle:

[Right] Comparison of these levels to Kuiper's original drawings
[Left] Other pictures of the surface
[Up] Introduction

[TOC] [Index] [Glossary] [Mail] [Help]

7/19/94 dpvc@geom.umn.edu -- The Geometry Center