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On the [28, 7, 12] binary self-complementary codes and their residuals

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Abstract

Recently Jungnickel and Tonchev have shown that there exist at least four inequivalent binary selfcomplementary [28, 7, 12] codes and have asked if there are other [28, 7] codes with weight distributionA 0=A 28=1,A 12=A 16=63. In the present paper we give a negative answer: these four codes are, up to equivalence, the only codes with the given parameters. Their residuals are also classified.

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References

  1. Assmus, E.F., Jr. and Key, J.D. 1989. Arcs and ovals in the Hermitian and Ree unitals.Europ. J. Combinatorics 10: 297–308.

    Google Scholar 

  2. Beth, Th., Jungnickel, D., and Lenz, H. 1986.Design Theory. Mannheim: B.I. Wissenschaftsverlag, 1985, and Cambridge: Cambridge Univ. Press.

    Google Scholar 

  3. Brouwer, A.E. 1981. Some unitals on 28 points and their embeddings in projective plans of order 9. In Georetries and Group, (M. Aigner and D. Jungnickel, eds.) Lect. Notes in Math., Vol. 893:183–189. Berlin: Springer.

    Google Scholar 

  4. Dodunecov, S.M. and Encheva, S. B. 1988. On the uniqueness of some linear subcodes of the binary extended Golay code.Proc. of the Int. Workshop Alg. Comb. Coding Theory. Varna, Bulgaria, pp. 38–40.

  5. Gibbons, P. 1976. Computing techniques for the construction and analysis of block designs. Dept. of Computer Science, Univ. of Tononto, Technical Report 92/76.

  6. Grey, L.D. 1962. Some bounds for error-correcting codes.IEEE Trans. Info. Theory. 8:200–202.

    Google Scholar 

  7. Jungnickel, D. and Tonchev, V.D. 1992. Exponential number of quasi-symmetric SDP designs and codes meeting the Grey-Rankin bound.Design, Codes and Crypotography 1:247–253.

    Google Scholar 

  8. Jungnickel, D. and Tonchev, V.D. 1992. On symmetric and quasi-symmetric designs with the symmetric difference property and their codes.J. Combin. Theory A 59:40–50.

    Google Scholar 

  9. Kantor, W.M. 1975. Symplectic groups, symmetric designs and line ovals.J. Algebra 33:43–58.

    Google Scholar 

  10. Kantor, W.M. 1983. Exponential numbers of two-weight codes, difference sets and symmetric designs.Discr. Math. 46: 95–98.

    Google Scholar 

  11. MacWilliams, F.J. and Sloane, N.J.A. 1977.The Theory of Error-Correcting Codes. Amsterdam: North-Holland.

    Google Scholar 

  12. Mathon, R. and Rosa, A., 1990. Tables of parameters of BIBDs withr≤41 including existence, enumeration and resolvability results: an update.Ars Combinatoria 30: 65–96.

    Google Scholar 

  13. Parker, C., Spence, E., and Tonchev, V.D. Designs with the symmetric difference property on 64 points and their groups.J. Combin. Theory A (to appear).

  14. Pless, V. 1972. A classification of self-orthogonal codes over GF(2).Discrete Math. 3: 209–246.

    Google Scholar 

  15. Rankin, R.A. 1955. The closest packing of spherical caps inn-dimensions.Proc. Glasgow Math. Assoc. 2:139–144.

    Google Scholar 

  16. Rankin, R.A. 1956. On the minimal points of positive definite quadratic forms.Mathematica 3: 15–24.

    Google Scholar 

  17. van Tilborg, H.C.A. 1981. The smallest length of binary 7-dimensional linear codes with prescribed minimum distance.Discrete Math. 33: 197–207.

    Google Scholar 

  18. Tonchev, V.D. 1988.Combinatorial Configurations, Longman Scientific and Technical. New York: Wiley.

    Google Scholar 

  19. Tonchev, V.D. Quasi-symmetric designs, codes, quadratics, and hyperplane sections.Geometriae Dedicata (to appear).

  20. Verhoeff, T. 1987. An updated table of minimum distance bounds for binary linear codes.IEEE Trans. Info. Theory 33:665–680.

    Google Scholar 

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Communicated by D. Jungnickel

This work has been done during the visit of the author as a guest researcher to the Department of Electrical Engineering at Linköping University, Sweden. The research was partially supported by the Bulgarian National Science Foundation under contracts No. 37/1987 and No. 876/1988.

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Dodunekov, S.M., Encheva, S.B. & Kapralov, S.N. On the [28, 7, 12] binary self-complementary codes and their residuals. Des Codes Crypt 4, 57–67 (1994). https://doi.org/10.1007/BF01388560

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  • DOI: https://doi.org/10.1007/BF01388560

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