This book is intended for graduate students and research mathematicians interested in dynamical systems and ergodic theory.

This text is intended for graduate students and research mathematicians interested in algebraic geometry, category theory and homological algebra.

Let $\mathcal N$ and $\mathcal M$ be von Neumann algebras. It is proved that $L DEGREESp(\mathcal N)$ does not linearly topologically embed in $L DEGREESp(\math

This title deals with a map $\alpha$ from a finite group $G$ into the automorphism group $Aut({\mathcal L})$ of a factor ${\mathcal L}$ satisfying (i) $G=N \rti