Abstract
A new construction method for codes using encodings from group rings is presented. They consist primarily of two types, zero-divisor and unit-derived codes. Previous codes from group rings focused on ideals; e.g. cyclic codes are ideals in the group ring over a cyclic group. The fresh focus is on the encodings themselves, which only under very limited conditions result in ideals.Using an isomorphism between group rings and a certain well-defined ring of matrices, equivalent matrix codes are established with resulting generator and check matrices.Group rings are a fruitful source of units and zero-divisors from which new codes result. Many code properties may more easily be expressed in terms of group ring properties.
| Original language | English (Ireland) |
|---|---|
| Title of host publication | Module codes in group rings |
| Publication status | Published - 1 Jul 2007 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Hurley, P,Hurley, T,