Images for Mathematics

*22∞ or 2*∞?

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Friezes on a minaret in Kalta-Minor Khiva intra-muros (Uzbekistan); if we imagine to unroll the column on a plane, we get the scheme of symmetry of a frieze of type *22∞ if we consider just one strip or an odd number of strips; we get a frieze of type 2*∞ if we take two strips or an even number of strips.

The image belongs to the sections...:
*22∞ (pmm2) (Symmetry)
Pma2 (Symmetry)
Decorations of walls and façades (Anthology of images)
Decorations of walls and façades (Symmetry)

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