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A new upper bound on the minimal distance of self-dual codes

Conway, J.H., Sloane, N.J.A.·1990·IEEE Transactions on Information Theory

Abstract

It is shown that the minimal distance d of a binary self-dual code of length n>or=74 is at most 2((n+6)/10). This bound is a consequence of some new conditions on the weight enumerator of a self-dual code obtained by considering a particular translate of the code, called its shadow. These conditions also enable one to find the highest possible minimal distance of a self-dual code for all n>or=60; to show that self-dual codes with dor=22, with d>or=8 exist precisely for n=24, 32 and n>or=26, and with d>or=10 exist precisely for n>or=46; and to show that there are exactly eight self-dual codes of length 32 with d=8. Several of the self-dual codes of length 34 have trivial group (this appears to be the smallest length where this can happen).>

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Metadata

Authors
Conway, J. H., & Sloane, N. J. A.
Venue
IEEE Transactions on Information Theory
Published
1990
Volume
36
Issue
6
Pages
1319-1333
ISSN
0018-9448 (ISSN-L)
OpenAlex
W2061721328
Cited by
347
References
13
FWCI
3.96
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A new upper bound on the minimal distance of self-dual codes. https://app.cochat.ai/papers/10.1109/18.59931
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Conway, J. H., & Sloane, N. J. A. (1990). A new upper bound on the minimal distance of self-dual codes. IEEE Transactions on Information Theory. https://doi.org/10.1109/18.59931

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