New posts in Lattices

Chemistry - Stacking two square (2D) layers to make a 3D close packed structure

Why do bees create hexagonal cells ? (Mathematical reasons)

what is the number of paths returning to 0 on the hexagonal lattice

Homomorphisms from higher rank lattices with infinite center to $\mathbb{Z}$

Simple conjecture about rational orthogonal matrices and lattices

Higman's lemma and a manuscript of Erdős and Rado

Lower bound for the number of lattice points on high dimensional spheres

Which even lattices have a theta series with this property?

An interesting sum over lattice points in a large disk centered at the origin

Is it possible to completely embed complete Heyting Algebras into upsets of a poset?