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Un théorème de disjonction de systèmes dynamiques et une généralisation du théorème ergodique de Wiener—Wintner

Published online by Cambridge University Press:  19 September 2008

E. Lesigne
Affiliation:
Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29287- Brest Cedex, France
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Abstract

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If (Ω, μ, T) is a measure preserving system and if ƒ ∈ L1(μ) then, for almost all ω, for every real polynomial P, the sequence

To prove this result we use the concept of disjointness of dynamical systems and the fact that disjointness is preserved by isometric extensions.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1990

References

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