Database of selfdual codes over integers modulo 8
Data files are in Magma format.
Magma programs
 checking equivalence
 checking mass formula (for lengths up to 20)
 extracting codes from a lattice
References
 E. Bannai, S.T. Dougherty, M. Harada and M. Oura, Type II codes, even unimodular lattices, and invariant rings, IEEE Trans. Inform. Theory 45 (1999), 11941205.
 K. Betsumiya, R.A.L. Betty and A. Munemasa, Mass formula for even codes over Z_8, Cryptography and coding, 6577,
Lecture Notes in Comput. Sci., 5921, Springer, Berlin, 2009.
 S.T. Dougherty, T.A. Gulliver and J. Wong, Selfdual codes over Z_8 and Z_9, Des. Codes Cryptogr. 41 (2006), 235249.

M. Harada and A. Munemasa,
On the classification of selfdual Z_kcodes,
Cryptography and coding, 7890,
Lecture Notes in Comput. Sci., 5921, Springer, Berlin, 2009.
 K. Nagata, F. Nemenzo and H. Wada, The number of selfdual codes over Z_{p^3}, Des. Codes Cryptogr. 50 (2009), 291303.
Links
Created May 24, 2009 by Masaaki Harada and Akihiro Munemasa
Last modified October 16, 2018.