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Approximate groups: structure theorem for special classes of groups

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NPC - Non-positive curvature group actions and cohomology

In the first part of the talk, I will recall the general structure theorem for approximate groups and derive a version of Gromov's almost flat manifolds theorem from it. In the second part I will explain how the structure theorem can be improved in two cases: linear groups and fully residually free groups.



This talk is part of the Isaac Newton Institute Seminar Series series.

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