Local rigidity question for boundary actions of complex hyperbolic lattices
Let a lattice in act on the boundary of complex hyperbolic space. Boundary-action rigidity question. Is the action of any lattice in on the boundary of complex hyperbolic space locally rigid? Work of Yue is cited as significant evidence, but the source leaves the question unresolved.
References
Primary source
David Fisher, “Local Rigidity of group actions: Past, Present, Future”, arXiv:math/0507455 (2007).
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