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A pointwise ergodic theorem for Fuchsian groups

Published online by Cambridge University Press:  27 April 2011

ALEXANDER I. BUFETOV
Affiliation:
The Steklov Institute of Mathematics, Russian Academy of Sciences, Gubkina Str. 8, 119991, Moscow, Russia. e-mail: [email protected]
CAROLINE SERIES
Affiliation:
Mathematics Institute, University of Warwick, Coventry CV4 7AL. e-mail: [email protected]

Abstract

We use Series' Markovian coding for words in Fuchsian groups and the Bowen-Series coding of limit sets to prove an ergodic theorem for Cesàro averages of spherical averages in a Fuchsian group.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 2011

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References

REFERENCES

[1]Anantharaman, C. et al. Théorèmes ergodiques pour les actions de groupes. Monographie 41 de L' Enseignment Mathématique (Genève, 2010).Google Scholar
[2]Beardon, A. An introduction to hyperbolic geometry. Ergodic Theory and Symbolic Dynamics in Hyperbolic Spaces, Bedford, T., Keane, M. and Series, C. eds. (Oxford University Press, 1991).Google Scholar
[3]Birman, J. and Series, C. Dehn's algorithm revisited, with application to simple curves on surfaces. Combinatorial Group Theory and Topology, Gersten, S. and Stallings, J. eds. Ann. of Math. Studies III (Princeton University Press, 1987), 451478.CrossRefGoogle Scholar
[4]Bowen, L.Invariant measures on the space of horofunctions of a word hyperbolic group. Ergodic Theory Dynam. Syst. 30 (2010), 97129.CrossRefGoogle Scholar
[5]Bowen, R. and Series, C.Markov maps associated with Fuchsian groups. Inst. Hautes Études Sci. Pubi. Math. 50 (1979), 153170.CrossRefGoogle Scholar
[6]Bufetov, A. I.Convergence of spherical averages for actions of free groups. Ann. of Math. (2), 155 (2002), 929944.CrossRefGoogle Scholar
[7]Bufetov, A. I.Markov averaging and ergodic theorems for several operators. Topology, ergodic theory, real algebraic geometry, 3950, Amer. Math. Soc. Transl. Ser. 2 202 (Amer. Math. Soc., 2001).Google Scholar
[8]Fujiwara, K. and Nevo, A.Maximal and pointwise ergodic theorems for word-hyperbolic groups. Ergodic Theory Dynam. Syst. 18 (1998), 843858.CrossRefGoogle Scholar
[9]Gorodnik, A. and Nevo, A.The ergodic theory of lattice subgroups. Ann. of Math. Stud. 172 (Princeton University Press, 2010).Google Scholar
[10]Grigorchuk, R. I.Ergodic theorems for the actions of a free group and a free semigroup. (Russian) Mat. Zametki 65 (1999), 779783 (English trans: Math. Notes 65 (1999), 654–657).Google Scholar
[11]Grigorchuk, R. I.An ergodic theorem for actions of a free semigroup. (Russian) Tr. Mat. Inst. Steklova 231 (2000), Din. Sist., Avtom. i Beskon. Gruppy, 119133 (English trans: Proc. Steklov Inst. Math. 2000 231, 113–127).Google Scholar
[12]Margulis, G. A., Nevo, A. and Stein, E. M.Analogs of Wiener's ergodic theorems for semisimple Lie groups. II. Duke Math. J. 103 (2000), 233259.CrossRefGoogle Scholar
[13]Nevo, A.Harmonic analysis and pointwise ergodic theorems for noncommuting transformations. J. Amer. Math. Soc. 7 (1994), 875902.CrossRefGoogle Scholar
[14]Nevo, A. Pointwise ergodic theorems for actions of groups. Handbook of dynamical systems. Vol. 1B, 871982 (Elsevier, Amsterdam, 2006).CrossRefGoogle Scholar
[15]Nevo, A. and Stein, E. M.A generalization of Birkhoff's pointwise ergodic theorem. Acta Math. 173 (1994), 135154.CrossRefGoogle Scholar
[16]Nevo, A. and Stein, E. M.Analogs of Wiener's ergodic theorems for semisimple groups. I. Ann. of Math. 2 145 (1997), 565595.CrossRefGoogle Scholar
[17]Series, C.The infinite word problem and limit sets in Fuchsian groups. Ergodic Theory Dynam. Syst. 1 (1981), 337360.CrossRefGoogle Scholar
[18]Series, C.Martin boundaries of random walks on Fuchsian groups. Israel J. Math. 44 (1983), 221240.CrossRefGoogle Scholar
[19]Series, C.Geometrical Markov coding of geodesics on surfaces of constant negative curvature. Ergodic Theory Dynam. Syst. 6 (1986), 601625.CrossRefGoogle Scholar
[20]Series, C. Geometrical methods of symbolic coding. Ergodic Theory and Symbolic Dynamics in Hyperbolic Spaces, Bedford, T., Keane, M. and Series, C. eds. (Oxford University Press, 1991).Google Scholar