Tag · 2 problems · 2 fields

Open problems tagged lattices

2 problems in the Math Lab index touch lattices, spanning Algebra, Geometry & Packing. Each carries a precise statement, an honest status, and a computational line of attack.

Finite lattice representation problemAlgebrauntouched

Is every finite lattice isomorphic to the congruence lattice of a finite algebra?

Kissing numbers in higher dimensionsGeometry & Packinguntouched

How many unit spheres can simultaneously touch a central unit sphere in dimension d without overlapping?