Skip to main content

Compactification of Spaces of Representations After Culler, Morgan and Shalen

  • Chapter
  • First Online:
Berkovich Spaces and Applications

Part of the book series: Lecture Notes in Mathematics ((LNM,volume 2119))

Abstract

We give an account on Morgan and Shalen’s work on the compactification of complex affine varieties using valuation spaces and its applications to the geometry of the character variety of a finitely generated group.

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

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 49.99
Price excludes VAT (USA)
  • Compact, lightweight 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

Institutional subscriptions

References

  1. M. Bestvina, Degenerations of the hyperbolic space. Duke Math. J. 56(1), 143–161 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  2. M. Bestvina, M. Feighn, Stable actions of groups on real trees. Invent. Math. 121(2), 287–321 (1995)

    Article  MATH  MathSciNet  Google Scholar 

  3. N. Bourbaki, Algèbre Commutative, Chapitres 5–7 (Masson, 1985)

    Google Scholar 

  4. R. Benedetti, C. Petronio, Lectures on Hyperbolic Geometry, Universitext (Springer, Berlin, 1991)

    Google Scholar 

  5. M. Culler, Lifting representations to covering groups. Adv. Math. 59, 54–70 (1986)

    Article  MathSciNet  Google Scholar 

  6. R. Canary, D. Epstein, P. Green, Notes on notes of Thurston, in Analytical and Geometrical Aspects of Hyperbolic Spaces (Cambridge University Press, Cambridge, 1987), pp. 3–92

    Google Scholar 

  7. I. Chiswell, Abstract length functions in groups. Proc. Cambridge Phil. Soc. 80, 451–463 (1976)

    Article  MATH  MathSciNet  Google Scholar 

  8. I. Chiswell, Introduction to \(\Lambda \) -Trees (World Scientific, Singapore, 2001)

    Google Scholar 

  9. I. Chiswell, Non standard analysis and the Morgan-Shalen compactification. Quart. J. Math. Oxford Ser. (2) 42(167), 257–270 (1991)

    Google Scholar 

  10. V. Chuckrow, On Schottky groups with applications to Kleinian groups. Ann. Math. 88, 47–61 (1968)

    Article  MATH  MathSciNet  Google Scholar 

  11. M. Culler, C. Gordon, J. Luecke, P. Shalen, Dehn surgery on knots. Ann. Math. (2) 125, 237–300 (1987)

    Google Scholar 

  12. M. Culler, J. Morgan, Group actions on \(\mathbb{R}\)-trees. Proc. Lond. Math. Soc. 55, 571–604 (1987)

    Article  MATH  MathSciNet  Google Scholar 

  13. M. Culler, J. Morgan, Varieties of group representations and splittings of 3-manifolds. Ann. Math. 117, 109–146 (1983)

    Article  MATH  Google Scholar 

  14. L. Ein, R. Lazarsfeld, K. Smith, Uniform approximation of Abhyankar valuation ideals in smooth function fields. Am. J. Math. 125(2), 409–440 (2003)

    Article  MATH  MathSciNet  Google Scholar 

  15. A. Fathi, F. Laudenbach, V. Poenaru, Travaux de Thurston sur les surfaces, Astérisque, pp. 66–67 (1979), SMF Paris

    Google Scholar 

  16. W. Floyd, U. Oertel, Incompressible surfaces via branched surfaces. Topology 23, 117–125 (1984)

    Article  MATH  MathSciNet  Google Scholar 

  17. D. Gaboriau, G. Levitt, F. Paulin, Pseudogroups of isometries of \(\mathbb{R}\) and Rips’ theorem on free actions on \(\mathbb{R}\)-trees. Isr. J. Math. 87, 403–428 (1994)

    Article  MATH  MathSciNet  Google Scholar 

  18. M. Gromov, Hyperbolic groups. in Essays in Group Theory, ed. by S.M. Gersten (ed.), MSRI Publ., vol. 8 (Springer, Berlin, Heidelberg, New York, 1987), pp. 75–263

    Google Scholar 

  19. R. Hartshorne, Algebraic Geometry. Graduate Texts in Mathematics, vol. 52 (Springer, New York, 1977)

    Google Scholar 

  20. R. Lyndon, Length functions in groups. Math. Scand. 12, 209–234 (1963)

    MATH  MathSciNet  Google Scholar 

  21. J. Morgan, Group actions on trees and the compactification of the space of classes of \(\mathop{SO}\nolimits (n,1)\)-representations. Topology 25, 1–33 (1986)

    Article  MATH  MathSciNet  Google Scholar 

  22. J. Morgan, \(\Lambda \)-trees and their applications. Bull. Am. Math. Soc. 26, 87–112 (1992)

    Google Scholar 

  23. J. Morgan, J.-P. Otal, Relative growth rates of closed geodesics on closed surfaces. Comment. Math. Helvitici 68, 171–208 (1993)

    Article  MATH  MathSciNet  Google Scholar 

  24. J. Morgan, P. Shalen, Degenerations of hyperbolic structures, I: Valuations, trees and surfaces. Ann. Math. 120, 401–476 (1984)

    Article  MATH  MathSciNet  Google Scholar 

  25. J. Morgan, P. Shalen, Degenerations of hyperbolic structures II: Measured laminations in 3-manifolds. Ann. Math. 127, 403–456 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  26. J. Morgan, P. Shalen, Degenerations of hyperbolic structures III: Actions of 3-manifold groups on trees and Thurston’s compactness theorem. Ann. Math. 127, 457–519 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  27. J. Morgan, P. Shalen, Free actions of surface groups on \(\mathbb{R}\)-trees. Topology 30(2), 143–154 (1991)

    Article  MATH  MathSciNet  Google Scholar 

  28. D. Mumford, Geometric Invariant Theory. Ergebnisse der Mathematik und ihrer Grenzgebiete, vol. 34 (Springer, New York, 1965)

    Google Scholar 

  29. D. Mumford, Algebraic Geometry I: Complex Projective Varieties. Grundlehren der Math. Wiss., vol. 221 (Springer, New York, 1976)

    Google Scholar 

  30. J.-P. Otal, Le théorème d’hyperbolisation pour les variétés fibrées de dimension 3. Astérisque no. 235 (Soc. Math. France, Paris, 1996)

    Google Scholar 

  31. F. Paulin, Topologie de Gromov équivariante, structures hyperboliques et arbres réels. Inv. Math. 94, 53–80 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  32. F. Paulin, Actions de groupes sur les arbres. Séminaire Bourbaki 1995–96, exp. 808, Astérisque no. 241 (Soc. Math. France, Paris, 1997)

    Google Scholar 

  33. J.G. Ratcliffe, Foundations of Hyperbolic Manifolds. Graduate Texts in Math., vol. 149 (Springer, New York, 1994)

    Google Scholar 

  34. J.-P. Serre, Arbres, Amalgames, \(\mathop{SL}\nolimits (2)\). Astérisque no. 46 (Soc. Math. France, Paris, 1977)

    Google Scholar 

  35. P. Shalen, Dendrology of groups: An introduction. in Essays in Group Theory, ed. by S.M. Gersten. Mathematical Sciences Research Institute Publications, vol. 8 (Springer, New York, 1987)

    Google Scholar 

  36. P. Shalen, Dendrology and its applications, in Group Theory from a Geometrical Viewpoint (Trieste, 1990) (World Scientific, River Edge, NJ, 1991), pp. 543–616

    Google Scholar 

  37. P. Shalen, Representations of 3-manifolds groups, in Handbook of 3-Manifold Groups (North-Holland, Amsterdam, 2002), pp. 955–1044

    Google Scholar 

  38. R. Skora, Geometric actions of surface groups on \(\Lambda \)-trees. Comment. Math. Helvetici 65, 519–533 (1990)

    Article  MATH  MathSciNet  Google Scholar 

  39. R. Skora, Splittings of surfaces. J. Am. Math. Soc. 9(2), 605–616 (1996)

    Article  MATH  MathSciNet  Google Scholar 

  40. J. Stallings, A topological proof of Grushko’s theorem on free products. Math. Zeit. 90, 1–8 (1965)

    Article  MATH  MathSciNet  Google Scholar 

  41. W. Thurston, The Geometry and Topology of 3-Manifolds. Princeton Lecture Notes (1978–1981), http://library.msri.org/books/gt3m/

  42. W. Thurston, Hyperbolic structures on 3-manifolds I: Deformations of acylindrical manifolds. Ann. Math. 124, 203–246 (1986)

    Article  MATH  MathSciNet  Google Scholar 

  43. W. Thurston, Three-Dimensional Geometry and Topology (Princeton University Press, Princeton, NJ, 1995)

    Google Scholar 

  44. M. Vaquié, Valuations and local uniformization. Singularity theory and its applications, pp. 477–527. Adv. Stud. Pure Math., vol. 43 (Math. Soc. Japan, Tokyo, 2006)

    Google Scholar 

  45. M. Vaquié, Extension d’une valuation. Trans. Am. Math. Soc. 359(7), 3439–3481 (2007)

    Article  MATH  Google Scholar 

  46. A. Weil, On discrete subgroups of Lie groups. Ann. Math. (2) 72, 369–384 (1960)

    Google Scholar 

  47. O. Zariski, Foundations of a general theory of birational correspondences. Trans. Am. Math. Soc. 53, 490–542 (1943)

    Article  MATH  MathSciNet  Google Scholar 

  48. O. Zariski, The compactness of the Riemann manifold of an abstract field of algebraic functions. Bull. Am. Math. Soc. 50, 683–691 (1944)

    Article  MATH  MathSciNet  Google Scholar 

  49. O. Zariski, P. Samuel, Commutative Algebra, vol. 2. Graduate Texts in Mathematics no 29 (Springer, New York-Heidelberg-Berlin, 1975)

    Google Scholar 

Download references

Acknowledgements

I would like to thank Charles Favre, Jan Kiwi, and Juan Rivera-Letelier for the invitation to give a course during the “Ultrametric Dynamics Days” in Santiago de Chile in January 2008. This paper owes a lot to Charles who encouraged me to develop my set of notes to an actual paper and made several important suggestions. The referee, through his constant criticism, also helped to bring the paper to its actual form.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jean-Pierre Otal .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2015 Springer International Publishing Switzerland

About this chapter

Cite this chapter

Otal, JP. (2015). Compactification of Spaces of Representations After Culler, Morgan and Shalen. In: Ducros, A., Favre, C., Nicaise, J. (eds) Berkovich Spaces and Applications. Lecture Notes in Mathematics, vol 2119. Springer, Cham. https://doi.org/10.1007/978-3-319-11029-5_7

Download citation

Publish with us

Policies and ethics