Natural coefficients and invariants for Markov-shifts.
Negative nonsingular transformations
New Proofs that Weak Mixing is Generic.
Nombres normaux
Nous rassemblons divers résultats sur les nombres normaux et en déduisons de nouveaux résultats.
Non-abelian extensions have nonsimple spectrum
Noncommutative Poincaré recurrence theorem
Poincaré’s classical recurrence theorem is generalised to the noncommutative setup where a measure space with a measure-preserving transformation is replaced by a von Neumann algebra with a weight and a Jordan morphism leaving the weight invariant. This is done by a suitable reformulation of the theorem in the language of -space rather than the original measure space, thus allowing the replacement of the commutative von Neumann algebra by a noncommutative one.
Note on weakly mixing transformations.
Note on weakly mixing transformations. (Summary).
Number theoretic expansions, algorithms and metrical observations.