Skip to main content
Log in

On the Sporadic Semifield Flock

  • Published:
Designs, Codes and Cryptography Aims and scope Submit manuscript

Abstract

We obtain the BLT-set associated with the sporadic semifield flock of the quadratic cone in PG(3,35) as the complete intersection of the Payne–Thas and the Kantor–Knuth ovoids of the parabolic quadric Q(4,35. Also, we give an alternative construction of the Penttila–Williams ovoid of Q(4,35).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. L. Bader, D. Ghinelli and T. Penttila, On monomial flocks, European J. Combin., Vol. 22 No. 4 (2001), pp. 447–454.

    Google Scholar 

  2. L. Bader and G. Lunardon, On non-hyperelliptic flocks, European J. Combin., Vol. 15 (1994) pp. 411–415.

    Google Scholar 

  3. L. Bader, G. Lunardon and J. A. Thas, Derivation of flocks of quadratic cones, Forum Math., Vol. 2 (1990) pp. 163–174.

    Google Scholar 

  4. L. Bader, G. Lunardon and I. Pinneri, A new semifield flock, J. Combin. Theory Ser. (A), Vol. 86 (1999) pp. 49–62.

    Google Scholar 

  5. I. Bloemen, Substructures and characterizations of finite generalized polygons, Ph.D. thesis, University of Ghent (1995).

  6. P. Dembowski, Finite Geometries, Springer-Verlag, Berlin (1997). Reprint of the 1968 original.

    Google Scholar 

  7. H. Gevaert and N. L. Johnson, Flocks of quadratic cones, generalized quadrangles and translation planes, Geom. Dedicata, Vol. 27 (1988) pp. 301–317.

    Google Scholar 

  8. N. L. Johnson, Semifield flocks of quadratic cones, Simon Stevin, Vol. 61 (1987) pp. 313–326.

    Google Scholar 

  9. W. M. Kantor, Ovoids and translation planes, Canad. J. Math., Vol. 34 (1982) pp. 1195–1207.

    Google Scholar 

  10. M. Law and T. Penttila, Flocks, Ovals and Generalised Quadrangles, Seminar Lecture Notes, Naples (2000).

  11. G. Lunardon, Flocks, ovoids of Q(4; q) and designs, Geom. Dedicata, Vol. 66 (1997) pp. 163–173.

    Google Scholar 

  12. S. E. Payne and J. A. Thas, Spreads and ovoids in finite generalized quadrangles, Geom. Dedicata, Vol. 52 (1994) pp. 227–253.

    Google Scholar 

  13. T. Penttila and B. Williams, Ovoids of parabolic spaces, Geom. Dedicata, Vol. 82, No. 1–3 (2000) pp. 1–19.

    Google Scholar 

  14. J. A. Thas, Generalized quadrangles and flocks of cones, European J. Combin., Vol. 8 (1987) pp. 293–312.

    Google Scholar 

  15. J. A. Thas, Symplectic spreads in PG(3, q), inversive planes and projective planes, Discrete Math., Vol. 174 (1997) pp. 329–336.

    Google Scholar 

  16. J. A. Thas and S. E Payne, Finite Generalized Quadrangles, Pitman, Boston/London/Melbourne (1984).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Cardinali, I., Polverino, O. & Trombetti, R. On the Sporadic Semifield Flock. Designs, Codes and Cryptography 30, 219–226 (2003). https://doi.org/10.1023/A:1025488922550

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1025488922550

Navigation