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Mean dimension and von Neumann-Lück rank

作者:   时间:2020-05-27   点击数:

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:202061日,10:00-11:00

腾讯会议,会议ID995 338 269

 

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