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L'immagine rappresenta sul toro un nodo trifoglio, ovvero un nodo di tipo (2,3). Si può...
The figure eight knot (also called the savoia knot) is the simplest knot after the trefoil...
We define a "fake knot" as a knot (so, a simple, closed curve in the space) that can be de...
A trefoil knot on a capital in the courtyard of S.Ambrogio church, in Milan.
A figure eight knot. The image has been used at the exhibition matemilano.
We define a "fake knot" as a knot (so, a simple, closed curve in the space) that can be de...
The trefoil knot is the simplest knot; here you can see the two versions (left and right) ...
The trefoil knot is the simplest knot; here you can see the two versions (left and right) ...
The diagram of a knot differs from a projection of the knot on a plane because every cross...
This wooden sculpture represents a torus, that is not embedded in the three-dimensional sp...
