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Jun 13, 2024

Graphics Archive — Special Topics: Hyperbolic Geometry

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“Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.” — The Poincaré Conjecture.

“Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.”

- The Poincaré Conjecture photo credit : https://bit.ly/2KDYLoC

If we stretch a rubber band around the surface of an apple, then we can shrink it down to a point by moving it slowly, without tearing it and without allowing…


Comments to: [email protected] Created: Tue Feb 11 7:10:27 CST 1997 — Last modified: Tue Feb 11 7:10:27 CST 1997.

Copyright © 1990–1995 by The Geometry Center, University of Minnesota. All rights reserved. For permission to use these images, please contact [email protected].

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