Skip to main content
Log in

Cocycles and the structure of ergodic group actions

  • Published:
Israel Journal of Mathematics Aims and scope Submit manuscript

Abstract

We show, for a large class of groups, the existence of cocycles taking values in these groups and which define ergodic skew products. We apply this to prove a generalization of Ambrose’s representation theorem for ergodic actions of these groups.

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.

Institutional subscriptions

Similar content being viewed by others

References

  1. W. Ambrose,Representation of ergodic flows, Ann. of Math.42 (1941), 723–739.

    Article  MathSciNet  Google Scholar 

  2. R. M. Belinskaya,Partitions of a Lebesgue space in trajectories defined by ergodic automorphisms, Functional Anal. Appl.2 (1968), 190–199.

    Article  Google Scholar 

  3. P. Crépel,Marches Aléatoires sur le Groupe des Déplacements du Plan, C. R. Acad. Sci. Paris278 (1974), A 961–964.

    Google Scholar 

  4. R. M. Dudley,Random walks on Abelian groups, Proc. Amer. Math. Soc.13 (1962), 447–450.

    Article  MATH  MathSciNet  Google Scholar 

  5. P. Forrest,On the virtual groups defined by ergodic actions of Rn and Zn, Advances in Math.14 (1974), 271–308.

    Article  MATH  MathSciNet  Google Scholar 

  6. T. E. Harris and H. Robbins,Ergodic theory of Markov chains admitting an infinite invariant measure, Proc. Nat. Acad. Sci. U.S.A.39 (1953), 860–864.

    Article  MathSciNet  Google Scholar 

  7. G. W. Mackey,Point realizations of transformation groups, Illinois J. Math.6 (1962), 327–339.

    MATH  MathSciNet  Google Scholar 

  8. G. W. Mackey,Ergodic theory and virtual groups, Math. Ann.166 (1966), 187–207.

    Article  MATH  MathSciNet  Google Scholar 

  9. J. von Neumann,Zur Operatorenmethode in der klassischen Mechanik, Ann. of Math.33 (1932), 587–642.

    Article  MathSciNet  Google Scholar 

  10. R. J. Zimmer,Extensions of ergodic group actions, Illinois J. Math.20 (1976), 373–409.

    MATH  MathSciNet  Google Scholar 

  11. R. J. Zimmer,Random walks on compact groups and the existence of cocycles, Israel J. Math.26 (1977), 84–90.

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zimmer, R.J. Cocycles and the structure of ergodic group actions. Israel J. Math. 26, 214–220 (1977). https://doi.org/10.1007/BF03007643

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03007643

Keywords

Navigation