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A wooden sculpture of Franco Badaracco's. From the point of view of topology, it represent...
A polyhedron that represents a surface of genus 1 (a torus), that can be thought as a doug...
The theorem of classification of the surfaces states that any compact, connected, orientab...
The theorem of classification of the surfaces states that any compact, connected, orientab...
The problem of the three houses on a torus. You can see other versions of the problem. Yo...
This interactive animation shows the various surfaces that can be obtained from a rectangl...
This interactive animation explores a topological property that characterizes the sphere (...
From the point of view of topology, this sculpture of Franco Badaracco's is a surface of g...
