Re: topology with interesting elastic cord.

From: "Hero" <Hero.van.Jindelt@xxxxxx>
Date: 21 Feb 2007 07:18:19 -0800

matt271829-n...@xxxxxxxxxxx wrote:

mina_world wrote:

Hello sir~

http://board-2.blueweb.co.kr/user/math565/data/math/knot.jpg

is this really homeomorphism ?

Remarkable.

What kind of transformation is this? Is there an analytic description
of it?

And mina, how did You find it?
It somehow shatters my intuition of borders and holes.

With friendly greetings
Hero

PS Just in case someone doesn't know this old one:
http://home.arcor.de/herovanjindelt/ring-loesen.JPG

.

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