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On quasi-compact Markov nets

Published online by Cambridge University Press:  20 July 2010

WOJCIECH BARTOSZEK
Affiliation:
Department of Mathematics, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland (email: [email protected])
NAZIFE ERKURŞUN
Affiliation:
Department of Mathematics, Middle East Technical University, 06531 Ankara, Turkey (email: [email protected])

Abstract

We extend a theorem of Lotz, which says that any Markov operator T acting on C(X) such that T* is mean ergodic and all invariant measures have non-meager supports must be quasi-compact, to Lotz–Räbiger nets.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2010

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References

[1]Bartoszek, W.. On a theorem of H. P. Lotz on quasi-compactness of Markov operators. Colloq. Math. 52(2) (1987), 281284.CrossRefGoogle Scholar
[2]Bartoszek, W.. On quasi-compactness and invariant measures of Markov operators on C(X). Bull. Acad. Polon. Sci. 34 (1986), 6972.Google Scholar
[3]Bartoszek, W.. Asymptotic periodicity of the iterates of positive contractions on Banach lattices. Studia Math. XCI (1988), 759–188.Google Scholar
[4]Bessaga, C. and Pełczyński, A.. Selected Topics in Infinite-Dimensional Topology (Mathematical Monographs, 58). PWN, Warsaw, 1975.Google Scholar
[5]Eberlein, W. F.. Abstract ergodic theorems and weakly almost periodic functions. Trans. Amer. Math. Soc. 67 (1949), 217240.CrossRefGoogle Scholar
[6]Emel’yanov, E. Yu.. Lotz–Räbiger nets. Conference Materials, Bilkent–METU Joint Analysis Seminar, 2008.Google Scholar
[7]Emel’yanov, E. Yu.. Non-spectral Asymptotic Analysis of One-Parameter Operator Semigroups (Operator Theory: Advances and Applications, 173). Birkhäuser, Basel, 2007.Google Scholar
[8]Emel’yanov, E. Yu. and Erkursun, N.. Generalization of Eberlein’s and Sine’s ergodic theorems to (ℒ,ℛ)-nets. Vladikavkaz. Mat. Zh. 9(3) (2007), 2226.Google Scholar
[9]Engelking, R.. General Topology. Heldermann, Berlin, 1985.Google Scholar
[10]Furstenberg, H.. Strict ergodicity and transformations of the torus. Amer. J. Math. 83 (1961), 573601.CrossRefGoogle Scholar
[11]Iwanik, A.. On pointwise convergence of Cesàro means and separation properties for Markov operators on C(X). Bull. Acad. Polon. Sci. 29(9–10) (1981), 515520.Google Scholar
[12]Iwanik, A.. Unique ergodicity of irreducible Markov operators on C(X). Studia Math. 77(1) (1983), 8186.CrossRefGoogle Scholar
[13]Iwanik, A.. Non-uniquely ergodic minimal systems. Bull. Acad. Polon. Sci. 32(7–8) (1984), 471478.Google Scholar
[14]Krengel, U.. Ergodic Theorems. De Gruyter, Berlin, 1985.CrossRefGoogle Scholar
[15]Lin, M.. On the uniform ergodic theorem. Proc. Amer. Math. Soc. 43 (1974), 334340.CrossRefGoogle Scholar
[16]Lin, M.. Quasi-compactness and uniform ergodicity of Markov operators. Ann. Inst. H. Poincaré Sect. B 11 (1975), 345354.Google Scholar
[17]Lin, M.. Quasi-compactness and uniform ergodicity of positive operators. Israel J. Math. 29 (1978), 309311.CrossRefGoogle Scholar
[18]Lotz, H. P.. Uniform ergodic theorems for Markov operators on C(X). Math. Z. 178 (1981), 145156.CrossRefGoogle Scholar
[19]Lotz, H. P.. Tauberian theorems for operators on Banach spaces. Semesterbericht Funktionalanalysis, WS 1983/1984, Mathematics Institute, Eberhard-Karls-Universität Tübingen, 1984, pp. 1–15.Google Scholar
[20]Lotz, H. P.. Tauberian theorems for operators on L and similar spaces. Functional Analysis: Surveys and Recent Results. Eds. Biersted, K.-D. and Fuchssteiner, B.. North-Holland, Amsterdam, 1984, pp. 117133.Google Scholar
[21]Oxtoby, J.. Ergodic sets. Bull. Amer. Math. Soc. 58 (1952), 116136.CrossRefGoogle Scholar
[22]Räbiger, F.. Stability and ergodicity of dominated semigroups. Math. Ann. 297 (1993), 103116.CrossRefGoogle Scholar
[23]Raimi, R. A.. Minimal sets and ergodic measures in βℕ∖ℕ. Bull. Amer. Math. Soc. 70 (1964), 711712.CrossRefGoogle Scholar
[24]Romanelli, S.. Ergodic subspaces related to operator semigroups. Bull. Acad. Polon. Sci. 38(3–4) (1991), 191198.Google Scholar
[25]Sine, R.. Constricted systems. Rocky Mountain J. Math. 21 (1991), 13731383.CrossRefGoogle Scholar
[26]Sine, R.. Geometric theory of a single Markov operator. Pacific J. Math. 27 (1968), 155166.CrossRefGoogle Scholar
[27]Yosida, K. and Kakutani, S.. Operator-theoretical treatment of Markov process and mean ergodic theorem. Ann. of Math. (2) 42(2) (1941), 188228.CrossRefGoogle Scholar