plural of Niemeier lattice

(mathematics) An even unimodular lattice Λ₂₄ in 24-dimensional Euclidean space, which is one of the best models for the problem of finding the maximum possible kissing number for n-dimensional spheres in (n + 1)-dimensional Euclidean space.

(mathematics) Any of the 24 positive definite even unimodular lattices of rank 24.

plural of lattice Boltzmann method

Any of a class of computational fluid dynamics (CFD) methods for fluid simulation. Instead of solving the Navier-Stokes equations directly, a fluid density on a lattice is simulated with streaming and collision (relaxation) processes.