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A polyhedral model in Euclidean 3-space of the six-pentagon map of the projective plane - MaRDI portal

A polyhedral model in Euclidean 3-space of the six-pentagon map of the projective plane (Q958237)

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scientific article; zbMATH DE number 5377160
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English
A polyhedral model in Euclidean 3-space of the six-pentagon map of the projective plane
scientific article; zbMATH DE number 5377160

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    A polyhedral model in Euclidean 3-space of the six-pentagon map of the projective plane (English)
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    2 December 2008
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    The author gives a nice and short constructive proof of the following Theorem: The family of six pentagons, that is a model of the projective plane arising by identifying antipodal points of the regular dodecahedron, can be realized as a polyhedron in Euclidean 3-space such that five of the six faces are simple planar pentagons and the sixth has a single self-intersection. That answers a question by B. Grünbaum.
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    model of the real projective plane
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    polyhedron
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    Möbius strip
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