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On the Characterisation of AG(n, q) by its Parameters asa Nearly Triply Regular Design

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Abstract

We show that a non-symmetric nearly triply regular \(2 - \left( {q^n ,q^{n - 1} ,\frac{{q^{n - 1} - 1}}{{q - 1}}} \right)\) designD with \(q^{n - 1} ,\nu 2 = q^{n - 3} \) and in which every line has at least q points is AG(n,q) for prime power q > 2 and positiveinteger n ≥ 3.

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References

  1. A. R. Calderbank, Geometric invariants for quasi-symmetric designs, J. Combin. Theory (A), Vol. 47 (1988) pp. 101–110.

    Google Scholar 

  2. A. R. Calderbank and P. Morton, Quasi-symmetric 3-designs and elliptic curves, SIAM J. Discrete Math., Vol. 3 (1990) pp. 178–196.

    Google Scholar 

  3. P. J. Cameron, Near regularity conditions for designs, Geometriae Dedicata, Vol. 2 (1973) pp. 213–223.

    Google Scholar 

  4. P. Dembowski, Finite Geometries, Springer-Verlag, Berlin-Heidelberg-New York (1968).

    Google Scholar 

  5. M. Herzog and K. B. Reid, Regularity in tournaments, in: Theory and Applications of Graphs Proceedings, Michigan, 1976, Lecture Notes in Math., Springer-Verlag, Berlin, 642 (1978) pp. 442–453.

    Google Scholar 

  6. J. Hirschfeld, Projective Geometries over Finite Fields, Oxford University Press, Oxford (1983).

    Google Scholar 

  7. N. Ito, Nearly triply regular hadamard designs and tournaments, Math. J. Okayama Univ., Vol. 32 (1990) pp. 1–5.

    Google Scholar 

  8. W. Kantor, Automorphisms and isomorphisms of symmetric and affine designs, J. Alg. Combin., Vol. 3 (1994) pp. 307–338.

    Google Scholar 

  9. C. E. Praeger and B. P. Raposa, Non-symmetric nearly triply regular designs, Discrete Math., to appear.

  10. S. S. Sane and M. S. Shrikhande, Quasi-symmetric 2, 3, 4-designs, Combinatorica, Vol. 7 (1987) pp. 291–301.

    Google Scholar 

  11. S. S. Sane and M. S. Shrikhande, Characterisations of quasi-symmetric designs with a spread, Designs, Codes and Cryptography, to appear.

  12. M. S. Shrikhande and S. S. Sane, Quasi-symmetric Designs, London Math. Soc. Lecture Note Series, Cambridge University Press, Cambridge, 164 (1991.)

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Pascasio, A.A., Praeger, C.E. & Raposa, B.P. On the Characterisation of AG(n, q) by its Parameters asa Nearly Triply Regular Design. Designs, Codes and Cryptography 8, 173–179 (1996). https://doi.org/10.1023/A:1018045227727

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  • DOI: https://doi.org/10.1023/A:1018045227727

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