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Published September 1970 | Published
Journal Article Open

On the symmetry of good nonlinear codes

Abstract

It is shown that there are arbitrarily long "good" (in the sense of Gilbert) binary block codes that are preserved under very large permutation groups. This result contrasts sharply with the properties of linear codes: it is conjectured that long cyclic codes are bad, and known that long affine-invariant codes are bad.

Additional Information

© 1970 IEEE. Reprinted with permission. Manuscript received July 23, 1969; revised November 3, 1969. T his research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, Pasadena, sponsored by the National Aeronautics and Space Administration under Contract NAS 7-100.

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