Fake Borromean rings
The three-components knot represented in this diagram has the same "shadow" of the Borromean rings, but it is actually a different knot. In fact, the three circumpherences are tied to form a chain. You can see examples of similar knots in this poster of matemilano. See the interactive animation Borromean and non-Borromean rings to understand the difference.
This image has been realized with the computer program KnotPlot.
The image belongs to the sections...:
Images from the topology section (From the exhibitions of matematita)
Three or more components knots (Topology)