Skip to main content
Log in

Random walks on compact groups and the existence of cocycles

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

Abstract

We show that certain skew products in ergodic theory are isomorphic to the shifts defined by random walks. We conclude the existence of cocycles for any finite measure preserving ergodic automorphism or flow, taking values in an arbitrary compact group, which determine ergodic skew products.

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

    Article  MathSciNet  Google Scholar 

  2. S. C. Bagchi, J. Mathew and M. G. Nadkarni,On systems of imprimitivity on locally compact abelian groups with dense actions, Acta Math.133 (1974), 287–304.

    Article  MathSciNet  Google Scholar 

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

    Article  Google Scholar 

  4. T. W. Gamelin,Uniform Algebras, Prentice Hall, Englewood Cliffs, N. J., 1969.

    MATH  Google Scholar 

  5. H. Helson,Compact groups with ordered duals, Proc. London Math. Soc.14A (1965), 144–156.

    Article  MathSciNet  Google Scholar 

  6. H. Helson and J. P. Kahane,Compact groups with ordered duals, III, J. London Math. Soc.4 (1972), 573–575.

    Article  MATH  MathSciNet  Google Scholar 

  7. H. Helson and D. Lowdenslager,Invariant subspaces, in Proc. Int. Symp. on Linear Spaces, Jerusalem, 1961, pp. 251–262.

  8. A. A. Kirillov,Dynamical systems, factors, and group representations, Russian Math Surveys22 (1967), 63–75.

    Article  MATH  MathSciNet  Google Scholar 

  9. G. W. Mackey,Infinite dimensional group representations, Bull. Amer. Math. Soc.69 (1963), 628–686.

    Article  MATH  MathSciNet  Google Scholar 

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

    Article  MATH  MathSciNet  Google Scholar 

  11. A. Ramsay,Virtual groups and group actions, Advances in Math.6 (1971), 253–322.

    Article  MATH  MathSciNet  Google Scholar 

  12. M. Rosenblatt,Markov Processes. Structure and Asymptotic Behavior, Springer-Verlag, Berlin, 1971.

    MATH  Google Scholar 

  13. A. M. Stepin,Cohomologies of automorphism groups of a Lebesgue space, Functional Anal. Appl.5 (1971), 167–168.

    Article  MATH  Google Scholar 

  14. W. A. Veech,Finite group extensions of irrational rotations, Israel J. Math.21 (1975), 240–259.

    Article  MATH  MathSciNet  Google Scholar 

  15. K. Yale,Invariant subspaces and projective representations, Pacific J. Math.36 (1971), 557–565.

    MATH  MathSciNet  Google Scholar 

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

    MATH  MathSciNet  Google Scholar 

  17. R. J. Zimmer,Ergodic actions with generalized discrete spectrum, to appear.

  18. R. J. Zimmer,Compact nilmanifold extensions of ergodic actions, to appear.

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zimmer, R.J. Random walks on compact groups and the existence of cocycles. Israel J. Math. 26, 84–90 (1977). https://doi.org/10.1007/BF03007658

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03007658

Keywords

Navigation