ArticleOriginal scientific text
Title
Ergodic properties of group extensions of dynamical systems with discrete spectra
Authors 1
Affiliations
- Institute of Mathematics, Nicholas Copernicus University, Chopina 12/18, 87-100 Toruń, Poland
Abstract
Ergodic group extensions of a dynamical system with discrete spectrum are considered. The elements of the centralizer of such a system are described. The main result says that each invariant sub-σ-algebra is determined by a compact subgroup in the centralizer of a normal natural factor.
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