Coupling of the GB set property for ergodic averages |
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Authors: | Michel Weber |
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Affiliation: | (1) Institut de Recherche Mathématique Avancée, Université Louis Pasteur et CNRS, 7, rue René Descartes, 67084 Strasbourg Cedex, France |
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Abstract: | Let (Y, , ,T) be an ergodic dynamical system. LetA be an nonempty subset ofL2( ) such that , whereA=sup{||sȒt||2 ,s, t A} andN(A, u) is the smallest number ofL2( )-open balls of radiusu, centered inA, enough to coverA. Let . We prove as a consequence of a more general result, thatC(A) is aGB subset ofL2( ). |
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Keywords: | Ergodic dynamical system coupling Gaussian processes GB sets |
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