\(A_n^{\perp}\) lattice

References

[1]

R. P. Bambah and H. Gupta, “On lattice coverings by spheres.” Proceedings of the National Institute of Sciences of India. Vol. 20. Indian National Science Academy, 1954.

[2]

B. N. Delaunay and S. S. Ryskov, “Solution of the problem of least dense lattice covering of a four-dimensional space by equal spheres.” Soviet Mathematics Doklady Vol. 4. 1963.

[3]

S. S. Ryshkov and E. P. Baranovskii, “Solution of the problem of least dense lattice covering of five-dimensional space by equal spheres”, Doklady Akademii Nauk SSSR, 222:1 (1975), 39–42.

[4]

S. S. Ryshkov and E. P. Baranovskii, “C-types of n-dimensional lattices and 5-dimensional primitive parallelohedra (with application to the theory of coverings)”, Trudy Matematicheskogo Instituta imeni V. A. Steklova, 137, 1976, 3–131; Proceedings of the Steklov Institute of Mathematics, 137 (1976), 1–140.

[5]

J. H. Conway and N. J. A. Sloane, Sphere Packings, Lattices and Groups (Springer New York, 1999) DOI