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concept:pmg2-frieze-pattern

pmg2 Frieze Pattern

Sixth frieze type; has two-fold rotational symmetry, vertical reflection symmetry, and glide-reflection symmetry.

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Papers (1)

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Frameworks (1)

framework
  • Mathematical classification system for one-dimensional periodic patterns using group theory; core framework for the analysis.

Concepts (8)

concept
  • Second frieze type; has two-fold rotational symmetry but no reflections or glide-reflections.
  • Seventh and rarest frieze type; has glide-reflection symmetry along translation axis but no rotation or reflection symmetry.
  • Third frieze type; has vertical mirror reflection symmetry but no rotation symmetry.
  • Fifth frieze type; has reflection symmetry in two directions and two-fold rotational symmetry.
  • Rotation by 180° about a center leaving the pattern invariant
  • One of four key isometries; combination of reflection and translation parallel to the mirror line.
  • vertical mirror
    associated_with
    Mirror line at right angles to the translation axis
  • Property where background and foreground tiles have identical shapes; observed in pmg2 patterns at the Alhambra.

Findings (1)

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Related by similarity (8)

cosine ≥ 0.65 · no typed edge

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.