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Semisimple group codes and dihedral codes

Author(s):
Dutra, Flaviana S. ; Ferraz, Raul A. ; Polcino Milies, C.
Total Authors: 3
Document type: Journal article
Source: ALGEBRA & DISCRETE MATHEMATICS; v. N/A, n. 3, p. 21-pg., 2009-01-01.
Abstract

We consider codes that are given as two-sided ideals in a semisimple finite group algebra F (q) G defined by idempotents constructed from subgroups of G in a natural way and compute their dimensions and weights. We give a criterion to decide when these ideals are all the minimal two-sided ideals of F q G in the case when G is a dihedral group and extend these results also to a family of quaternion group codes. In the final section, we give a method of decoding; i.e., of finding and correcting eventual transmission errors. (AU)

FAPESP's process: 00/07291-0 - Group rings and related topics
Grantee:Francisco Cesar Polcino Milies
Support Opportunities: Research Projects - Thematic Grants