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Hyperbolic Fibrations and q-Clans

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Abstract

We show there is a bijection between regular hyperbolic fibrations with constant back half and normalized q-clans. Thus there is also a bijection with flocks of a quadratic cone, once a conic of the flock has been specified. This yields a plethora of two-dimensional translation planes of even and odd order which arise from spreads admitting a regular elliptic cover.

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References

  • J. Andrè (1954) ArticleTitleUber nicht-Desarguessche ebenen mit transitiver translation-sgruppe Math. Z. 60 156–186 Occurrence Handle0056.38503 Occurrence Handle63056

    MATH  MathSciNet  Google Scholar 

  • M. Aschbacher (1986) Finite Group Theory Cambridge University Press Cambridge, New York Occurrence Handle0583.20001

    MATH  Google Scholar 

  • L. Bader G. Lunardon J. A. Thas (1990) ArticleTitleDerivation of flocks of quadratic cones Forum Math. 2 163–174 Occurrence Handle10.1515/form.1990.2.163 Occurrence Handle0692.51006 Occurrence Handle1042617

    Article  MATH  MathSciNet  Google Scholar 

  • R. D. Baker J. M. Dover G. L. Ebert K. L. Wantz (1998) ArticleTitleHyperbolic fibrations of PG(3,q). Europ, J. Combinatorics 19 1–16 Occurrence Handle1669584

    MathSciNet  Google Scholar 

  • R. D. Baker G. L. Ebert K. L. Wantz (2001) ArticleTitleRegular hyperbolic fibrations Adv. in Geom. 1 119–144 Occurrence Handle0991.51006 Occurrence Handle1840217

    MATH  MathSciNet  Google Scholar 

  • R. H. Bruck R. C. Bose (1964) ArticleTitleThe construction of translation planes from projective spaces J. Algebra 1 85–102 Occurrence Handle0117.37402 Occurrence Handle161206

    MATH  MathSciNet  Google Scholar 

  • W. E. Cherowitzo R. H. Bruck Tim Penttila I. Pinneri G. F. Royle (1996) ArticleTitleFlocks and ovals Geom. Dedicata 60 17–37 Occurrence Handle0855.51008 Occurrence Handle1376478

    MATH  MathSciNet  Google Scholar 

  • J. C. Fisher J. A. Thas (1979) ArticleTitleFlocks in PG(3,q) Math. Z. 169 1–11 Occurrence Handle0396.51009 Occurrence Handle546988

    MATH  MathSciNet  Google Scholar 

  • J. W. P. Hirschfeld (1998) Projective Geometries over Finite Fields Oxford University Press Oxford Occurrence Handle0899.51002

    MATH  Google Scholar 

  • J. W. P. Hirschfeld J. A. Thas (1991) General Galois Geometries Oxford University Press Oxford Occurrence Handle0789.51001

    MATH  Google Scholar 

  • N. L. Johnson and S. E. Payne, \newblock Flocks of Laguerre planes and associated geometries. \newblock In N. L. Johnson, Mostly Finite Geometries, (ed.), Marcel Dekker (1997) pp. 51–122.

  • M. Law and Tim Penttila, Private communication.

  • S. E. Payne, Flock generalized quadrangles and related structures: an update. In F. De Clerck, L. Storme, J. A. Thas, and H. Van Maldeghem Generalized Polygons, Koninklijke Academie Voor Wetenschappen en Kunsten (2001) pp. 61–98.

  • S. E. Payne J. A. Thas (1991) ArticleTitleConical flocks, partial flocks, derivation, and generalized quadrangles Geom. Dedicata 38 229–243 Occurrence Handle0735.51010 Occurrence Handle1104347

    MATH  MathSciNet  Google Scholar 

  • J. A. Thas (1987) ArticleTitleGeneralized quadrangles and flocks of cones Europ. J. Combin. 8 441–452 Occurrence Handle0646.51019 Occurrence Handle930180

    MATH  MathSciNet  Google Scholar 

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Baker, R.D., Ebert, G.L. & Penttila, T. Hyperbolic Fibrations and q-Clans. Des Codes Crypt 34, 295–305 (2005). https://doi.org/10.1007/s10623-004-4861-8

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