## Lattices and Packings

A *lattice* here means the integral span of a basis in
**R**^{n}.

Note that for people working in Order Theory a *lattice*
is a special kind of partially ordered set.

#### References

- Peter M. Gruber and C. Gerrit Lekkerkerker:
*Geometry of
Numbers*, 2nd ed, North-Holland Mathematical Library,
Vol. 37. Amsterdam etc.: North- Holland. (1987).
- Neil J.A. Sloane and Gabriele Nebe:
*A Catalogue of
Lattices*, http://www.research.att.com/~njas/lattices/
(1999).
- Chuangming Zong:
*Sphere Packings*, Springer (1999).