Sphere-packings, lattices, and groups
Sphere-packings, lattices, and groups
The binary self-dual codes of length up to 32: a revised enumeration
Journal of Combinatorial Theory Series A
Self-dual codes over the integers modulo 4
Journal of Combinatorial Theory Series A
Algorithms in invariant theory
Algorithms in invariant theory
Modular and p-adic cyclic codes
Designs, Codes and Cryptography
Quaternary quadratic residue codes and unimodular lattices
IEEE Transactions on Information Theory
New Extremal Type II Codes Over Z_4
Designs, Codes and Cryptography
Type II Self-Dual Codes over Finite Rings and Even Unimodular Lattices
Journal of Algebraic Combinatorics: An International Journal
Construction of Extremal Type II Codes over \mbox{\zZ}_4
Designs, Codes and Cryptography
Construction of new extremal unimodular lattices
European Journal of Combinatorics - Special issue on arithmétique et combinatoire
An upper bound on the minimum weight of Type II Z2k-codes
Journal of Combinatorial Theory Series A
On the classification and enumeration of self-dual codes
Finite Fields and Their Applications
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With the help of some new results about weight enumeratorsof self-dual codes over Z\!Z_4 we investigate a class of doublecirculant codes over Z\!Z_4, one of which leads to anextremal even unimodular 40-dimensional lattice. It is conjecturedthat there should be “Nine more constructions of the Leech lattice”