Skip to main content

Reflections on Concrete Buildings

  • Conference paper
  • 158 Accesses

Abstract

In the last few years there have been many constructions and characterizations of finite groups acting chamber-transitively on finite building-like geometries. A number of these even dealt more generally with locally finite geometries: ones in which all stars are finite. Many of the examples, and some of the results, are concerned with quotients of affine buildings over locally compact local fields. The purpose of this note is two-fold: to discuss many of the known examples from a somewhat new point of view (§2), and to describe a characterization theorem due jointly to Liebler, Tits and myself (§3).

The preparation of this paper was supported in part by NSF Grants DMS-8320149 (University of Oregon) and MCS-8108814(A04) (Institute for Advanced Study).

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

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD   169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD   219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD   219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Learn about institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. A. Borel and J. Tits, Éléments unipotents et sous-groupes paraboliques de groupes réductifs. I. Invent. Math. 12 (1971) 95–104.

    Article  MathSciNet  MATH  Google Scholar 

  2. F. Bruhat and J. Tits, Groupes réductifs sur un corps local, I. Données radicielles valuées. Publ. Math. I.H.E.S.41 (1952) 5–521.

    Google Scholar 

  3. J. W. S. Cassels, Rational Quadratic Forms. Academic Press, London-New York-San Francisco, 1978.

    MATH  Google Scholar 

  4. W. Feit and J. Tits, Projective representations of minimum degree of group extensions. Can. J. Math. 30 (1972) 1092–1102.

    MathSciNet  Google Scholar 

  5. L. Gerritzen and M. van der Put, Schottkv groups and Mumford curves. Springer Lecture Notes in Math. 817 (1980).

    Google Scholar 

  6. Y. Ihara, On discrete subgroups of the two by two projective linear group over p-adic fields. J. Math. Soc. Japan 18 (1966) 219–235.

    Article  MathSciNet  MATH  Google Scholar 

  7. W. M. Kantor, Some exceptional 2-adic buildings. J. Algebra 92 (1985) 208–223.

    Article  MathSciNet  MATH  Google Scholar 

  8. W. M. Kantor, Some locally finite flag-transitive buildings (to appear in Europ. J. Comb.).

    Google Scholar 

  9. W. M. Kantor, Finite simple groups via p-adic groups, pp. 175–181 in Proc. Rutgers Group Theory Year 1983–1984, Cambridge U. Press 1984.

    Google Scholar 

  10. W. M. Kantor, Generalized polygons, SCABs and GABs, pp. 79–156 in Buildings and the Geometry of Diagrams: CIME Session Como 1984, Springer Lecture Notes in Mathematics 1181, 1986.

    Google Scholar 

  11. W. M. Kantor, R. A. Liebler and J. Tits, On discrete chamber-transitive automorphism groups of affine buildings (to appear in Bull. AMS).

    Google Scholar 

  12. W. M. Kantor, T. Meixner and M. Wester (in preparation).

    Google Scholar 

  13. M. Kneser, Semi-simple algebraic groups, pp. 250–265 in Algebraic Number Theory (eds. J. W. S. Cassels and A. Fröhlich), Academic Press 1967.

    Google Scholar 

  14. P. Köhler, T. Meixner and M. Wester, The affine building of type and its finite projections. J. Combinatorial Theory (A)38 (1985) 203–209.

    Article  MATH  Google Scholar 

  15. P. Köhler, T. Meixner and M. Wester, The affine building of type Ã2 over a local field of characteristic two. Arch. Math. 42 (1984) 400–407.

    Article  MATH  Google Scholar 

  16. V. Landazuri and G. M. Seitz, On the minimal degrees of projective representations of the finite Chevalley groups. J. Algebra 32 (1974) 418–443.

    Article  MathSciNet  MATH  Google Scholar 

  17. A. Lubotzky, R. Phillips and P. Sarnak, Explicit expanders and the Ramanujan conjectures. Proc. 18th Symp. Theory Computing (1986) 240–246.

    Google Scholar 

  18. T. Meixner, Gruppen mit parabolischen Systemen. Habilitationsschrift, Giessen 1985.

    Google Scholar 

  19. T. Meixner and M. Wester, Some locally finite buildings derived from Kantor’s 2-adic groups. Comm. in Alg. 14 (1986) 389–410.

    Article  MathSciNet  MATH  Google Scholar 

  20. D. Mumford, An algebraic surface with K ample, (K2)=9, pg=q=0. Amer. J. Math. 101 (1979) 233–244.

    Article  MathSciNet  MATH  Google Scholar 

  21. G. M. Seitz, Flag-transitive subgroups of Chevalley groups. Ann. of Math. 97 (1973) 27–56; correction (unpublished).

    Article  MathSciNet  MATH  Google Scholar 

  22. J.-P. Serre, Trees. Springer 1980.

    Google Scholar 

  23. F. G. Timmesfeld, Tits chamber systems and finite group theory, pp. 249–269 in Buildings and the Geometry of Diagrams: CIME Session Como 1984, Springer Lecture Notes in Mathematics 1181, 1986.

    Google Scholar 

  24. J. Tits, Reductive groups over local fields. Proc. AMS Symp. Pure Math. 33 (1979) 29–69.

    Google Scholar 

  25. J. Tits, Buildings and Buekenhout geometries, pp. 309–320 in Finite Simple Groups. IL Academic Press 1980.

    Google Scholar 

  26. J. Tits, A local approach to buildings, pp. 519–547 in The Geometric Vein. Coxeter Festschrift, Springer 1982.

    Google Scholar 

  27. J. Tits, Immeubles de type affine, pp. 157–191 in Buildings and the Geometry of Diagrams: CIME Session Como 1984, Springer Lecture Notes in Mathematics 1181, 1986.

    MathSciNet  Google Scholar 

  28. J. Tits, On some edge-transitive automorphism groups of the affine building of SL3(k((y))), for a field k possessing a cyclic extension (manuscript).

    Google Scholar 

  29. J. Tits, Éléments unipotents et sous-groupes paraboliques de groupes réductifs. II (to appear in Proc. Conf. Algebraic Groups, Utrecht 1986).

    Google Scholar 

  30. J. Tits, Buildings and group amalgams (to appear in St. Andrews Group Theory Conf. 1985).

    Google Scholar 

  31. J. Tits, Résumé des cours, Collège de France 1984/5.

    Google Scholar 

  32. T. N. Venkataramana, Sur la super-rigidité et l’arithméticité des réseaux dans les groupes sur des corps locaux de charactéristique quelconque. C. R. Acad. Sei. Paris 302(1986) 371–373.

    Google Scholar 

  33. M.-F. Vignéras, Arithmétique des algèbres de quaternions. Springer Lecture Notes in Math. 800 (1980).

    Google Scholar 

  34. M. Wester, Endliche fahnentransitive Tits-Geometrien und ihre universellen Überlagerungen. Mitt. Math. Sem. Giessen 170 (1985) 1–143.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1988 D. Reidel Publishing Company, Dordrecht, Holland

About this paper

Cite this paper

Kantor, W.M. (1988). Reflections on Concrete Buildings. In: Aschbacher, M., Cohen, A.M., Kantor, W.M. (eds) Geometries and Groups. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4017-8_3

Download citation

  • DOI: https://doi.org/10.1007/978-94-009-4017-8_3

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8282-2

  • Online ISBN: 978-94-009-4017-8

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics