题目：Mean dimension and von Neumann-Lück rank

主讲人：梁兵兵（IMPAN）

摘要：The mean dimension is an invariant of topological dynamical systems, which is crucial to solve the embedding problems of dynamical systems. The von Neumann-Lück rank is an invariant of group ring modules in $L^2$-invariants theory. We show that the mean dimension of every algebraic action, coincides with the von Neumann-Lück rank of the associated modules. The crucial ingredient of the proof is the introduction of a new invariant for integral group ring modules.

时间：2020年6月1日，10:00-11:00

腾讯会议，会议ID：995 338 269