Natural coefficients and invariants for Markov-shifts.
Natural definition of entropy of semigroups
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 singular transformations and spectral analysis of measures
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.
Nonergodic actions, cocycles and superrigidity.
Non-hyperbolicity and invariant measures for unimodal maps
Nonsingular cocycles and piecewise linear time changes.
Note on weakly mixing transformations.
Note on weakly mixing transformations. (Summary).
Number theoretic expansions, algorithms and metrical observations.
Numerical invariants of exponential groups and locally free approximation of the braid group.