A clapper

A dihedral symmetry of type D1 in this clapper in Milan.From the point of view of topology...

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A clapper

A dihedral symmetry of type D1 in this clapper in Bergamo.From the point of view of topolo...

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An aimed hole

The clappers of this door in Rome on the Aventino have a dihedral symmetry D1 and if you l...

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A clapper

A dihedral symmetry of type D1 in this clapper in Bergamo.From the point of view of topolo...

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Symmetry in a clapper

A dihedral symmetry of type D1 in this clapper of a gate in Milan. From the point of view...

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A clapper

A dihedral symmetry of type D1 in this clapper in Val Brembana in Bergamo.From the point o...

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A clapper

A dihedral symmetry of type D1 in this clapper in Milan.From the point of view of topology...

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A clapper

A dihedral symmetry of type D1 in this clapper in Bergamo.From the point of view of topolo...

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Un rosone

Un rosone con simmetria diedrale, di tipo D8 (dovuto agli 8 piccoli incavi sul bordo che r...

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Un rosone

Un rosone con simmetria diedrale, di tipo D4. Particolare della Basilica di Fourvière a L...

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