enperiodisk
Enperiodisk is a Swedish term meaning not periodic or aperiodic. It is used in mathematics, physics, and related fields to describe objects that do not exhibit translational symmetry with a fixed period. In general, an enperiodisk object has no nonzero displacement that leaves it unchanged.
In mathematics, enperiodisk describes sequences, tilings, or functions that lack a repeating period. For a sequence
In geometry and tiling, enperiodisk tiling (aperiodic tiling) refers to tilings that never repeat in a regular,
In crystallography and materials science, enperiodiska strukturer or aperiodic crystals describe arrangements that lack translational periodicity
In number theory and combinatorics, enperiodiska sequences include examples such as the Thue–Morse sequence, which is