Can lattices in SL(n,R) act on the circle?
classification
🧮 math.RT
math.GR
keywords
boundedcircleactionamenabilitycohomologyconjecturedescribesexpository
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This expository paper describes the various methods that have yielded partial results on the conjecture that if n > 2, then no lattice in SL(n,R) has a faithful action on the circle (by homeomorphisms). Topics include amenability, Kazhdan's property (T), bounded cohomology, bounded generation, and the Reeb-Thurston Stability Theorem.
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