University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Stallings folds for CAT(0) cube complexes and quasiconvex subgroups

Stallings folds for CAT(0) cube complexes and quasiconvex subgroups

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NPCW01 - Non-positive curvature in action

We describe a higher dimensional analogue of the Stallings folding sequence for group actions on CAT cube complexes. We use it to give a characterization of quasiconvex subgroups of hyperbolic groups which act properly co-compactly on CAT cube complexes via finiteness properties of their hyperplane stabilizers. Joint work with Benjamin Beeker.

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

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