quasilattice

plural quasilattices

1. mathematicsA non-periodic structure that exhibits long-range order without translational symmetry.

   Here we prove that reflection quasilattices only exist in dimensions two, three and four, and we prove that there is a unique reflection quasilattice in dimension four: the "maximal reflection quasilattice" in terms of dimensionality and symmetry.

   2016, Latham Boyle, Paul J. Steinhardt, “Reflection Quasilattices and the Maximal Quasilattice”, in arXiv